If you were asked to name the body part that starts with the letter “d”, how many would you recite by heart?
You’ll probably not be able to recite many because some might be strange to you. After all, they are inside of you and out of sight.
If you were searching for the body part that starts with the letter “d”, we’ve prepared a list for you explaining what they do.
Diaphragm
This body part is a thin skeletal muscle that sits between the chest and the stomach. It is linked to the spine and surrounded by the ribs and sternum.
The diaphragm helps you to breathe properly. As you inhale, your diaphragm flattens and contracts.
Your rib cage will begin to rise when this happens; likewise, your lungs will be filled with air. However, once you exhale, your ribs will lower, and your diaphragm will relax.
Descending Colon
The colon is a part of the large intestine and the digestive system. It helps to process waste products and prepares them for removal, and also reabsorb fluids.
The descending colon has four parts, namely;
- ascending colon
- descending colon
- sigmoid colon
- transverse colon
Furthermore, while the small intestine absorbs nutrients from your food, the large intestine doesn’t have much to do. It helps to maintain water balance, stores waste and absorbs specific vitamins.
You can find the descending colon on the left part of the large intestine. It extends to the sigmoid colon. Peritoneum, a thin tissue layer supporting the abdominal organ, is what holds the colon in place.
Lymph vessels, nerves and blood vessels all go through the peritoneum to reach several organs.
Duodenum
This is a part of the small intestine that takes the shape of the letter “C”. Furthermore, it is close to the lumbar section and the kidney. It’s the first section of the small intestine that is linked to the jejunum.
Once you’ve eaten food, the food travels to your stomach before going through the Duodenum.
The Duodenum plays a major role in breaking down the partially digested food from the stomach and extracting nutrients from them.
After it has done its job, the food now finds its way to the small intestine.
Dermis
The dermis is the layer of your skin that sits underneath the outer layer called the epidermis. The role of the dermis is to provide nutrition to the epidermis because the outer layer is not equipped to provide food for itself.
Furthermore, the dermis comprises all the sweat glands, blood capillaries, hair follicles, and nerve endings. It is hearty, thick and protects your internal organs.
Also, the sweat glands present in the dermis control sweat production in response to specific conditions like stress and heat and anxiety.
As the sweat gets off the skin, the body begins to cool down and maintain homeostasis.
Digits
Your toes and fingers are known as digits. The bones in the digits are known as phalanges, and the origin of digits makes us understand that it isn’t all animals that possess this body part.
Digestive system
The digestive system is specially designed to transform the food that we eat into nutrients. Furthermore, the body uses these nutrients for cell repair, energy and growth.
Here’s how it works
Mouth
The activity of the digestive system begins with the mouth. As soon as you take in food, chew and swallow, the process has begun.
The food gets broken down into smaller particles that can easily digest. Saliva mixes with the food to start the breaking down process into an acceptable form that your body can use.
Throat
Once food goes through your mouth, its next destination is the throat. From the throat, it moves further to the swallowing tube or oesophagus.
Oesophagus
This is a tube that extends from the throat to the stomach. In essence, the oesophagus transports food to the stomach.
Stomach
The stomach is an organ with solid muscular walls. Apart from storing food, it serves as a grinder and mixer. The stomach discharges acid and potent enzymes that continuously breaks down food.
Once food leaves the stomach, it is either in liquid or paste form. From there, food transports to the small intestine.
Small intestine
The small intestine continues from where the stomach stopped. It breaks down food by leveraging the bile in the liver and the enzymes in the pancreas.
From the small intestine, it gets to the pancreas, liver, gall bladder, colon, rectum and anus.
Ducts
Ducts are the part of the body where tears come from. They are little tunnels that are designed to transport tears. Ducts are linked to your throat.
Furthermore, ducts help drain excess liquid within the area whenever you get emotional and cry; the ducts transport water (tears) through your eyelids.
Dua’s Layer
This is one of the six layers that you can find in the cornea. Remarkably, the Dua’s layer body part was just discovered in 2013. It is a very thin layer.
Harminder S. Dua, a professor of visual sciences and ophthalmology, discovered the Dua’s layer.
The Dua’s layer is a well-defined, tough lining about 10 to 15 micrometre thick, located between the Descemet’s membrane and the corneal stroma.
The layer helps surgeons to improve the results of patients who undergo transplants and corneal grafts.
During surgery, little air bubbles are introduced into the corneal stroma. This is the “big bubble technique”.
In most cases, the bubble can erupt and damage the patient’s eye. However, if the surgeon injects the air bubble under the Dua’s layer and not above it, the layer’s strength will reduce the possibility of tearing.
Dorsal Cavity
This is a section of the body that is filled with fluid. It surrounds the spinal cord and the brain.
It comprises the spinal cavity and cranial cavity, both of which offer protection to the delicate nervous tissue.
The spinal cord is a fragile body part that needs the protection of the Dorsal cavity.
Dorsalis Pedis Artery
The dorsal pedis, also known as the artery of the foot, is the blood vessel found in the lower limb. It transports oxygenated blood to the tip of the foot.
In most cases, it is examined by doctors to check if a patient is suffering from peripheral vascular disease.
Derriere
Derriere is a French word for buttocks or backside. The Derriere refers to the two rounded portions of our lower backside.
Humans use it for sitting on chairs.
Dura Mater
This is one of the layers that assist in covering the brain and spinal cord. It’s the topmost layer among the three meninges that offer protection to the brain and spinal cord.
Furthermore, the Dura Mater supports and surrounds the large dural sinuses (venous channels), transporting blood from the brain to the heart.
The Dura Mater is divided into numerous septa that supports the brain. Also, it is thick and uses connective tissues to produce the largest possible protective layer for the nervous system beneath it.
Decidua
The Decidua is a protective uterine tissue that plays an essential role in shielding the embryos from getting attacked by motherly immune cells.
It also offers nutritional support to the emerging embryo before the formation of the placenta.
The major functions of the Decidua are the regulation of syncytiotrophoblast invasion, provision of gas exchange and nutrition and the production of hormones.
To prepare the uterus for pregnancy, the decidualization process must commence.
This is the preparation of the innermost layer of the endometrium by using spiral arterioles and trophoblast to invade it.
The Decidua is separated into three parts. The decidua capsularis, decidua basalis and the decidua parietals.
These three parts are named by the type of relationship that they have with the conceptus.
Descending Aorta
The aorta is the largest artery in the body. It runs through the abdomen and the chest. The descending aorta helps transport blood to various parts of your body.
Furthermore, the aorta is the primary artery that moves blood from your heart to other parts of the body. The blood is flown out of the heart via the aortic valve.
Moving on, the blood moves through the aorta in a cane-shaped bend that enables other primary arteries to distribute oxygen-rich blood to the muscles, brain and other cells for the body to survive.
Deltoid
The deltoid muscle is responsible for creating the rounded contour that is visible on the human shoulder.
Another name for the deltoid muscle is the common shoulder muscle, mostly seen in domestic cats’ anatomy.
The deltoid muscle consists of three different types of muscle fibres, and they are as follows;
- clavicular or anterior part
- scapular or posterior part
- acromial or intermediate part
Diencephalon
This is a little part of the brain that is hidden from view when you’re staring at the outer part of the brain. It’s divided into four sections, namely;
- thalamus
- epithalamus
- hypothalamus
- subthalamus
- Diaphram
The diaphragm is a muscular structure that divides the abdominal cavities and chest (thoracic) in mammals. It is the primary respiration muscle.
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FAQs
What are the 12 body parts? ›
- The brain. The brain is the control centre of the nervous system and is located within the skull. ...
- The lungs. The lungs are two sponge-like, cone-shaped structures that fill most of the chest cavity. ...
- The liver. ...
- The bladder. ...
- The kidneys. ...
- The heart. ...
- The stomach. ...
- The intestines.
Ten major systems include the skeletal, muscular, nervous, endocrine, cardiovascular, lymphatic, respiratory, digestive, urinary, and the reproductive system.
What are the 7 parts of the body? ›divide the human body into seven body parts (Head+Neck, Chest, Abdomen, Pelvis, Thigh, Shank, and Foot) based on anatomical studies of gait [10] given in Fig. 4.
What are the 5 most important body parts? ›The human body contains five organs that are considered vital for survival. They are the heart, brain, kidneys, liver, and lungs.
What are the 11 main body systems? ›The 11 organ systems include the integumentary system, skeletal system, muscular system, lymphatic system, respiratory system, digestive system, nervous system, endocrine system, cardiovascular system, urinary system, and reproductive systems. The VA defines 14 disability systems, which are similar to the body systems.
What are the 5 parts of the body? ›On the outside human anatomy consists of the five basic parts, the head, neck, torso, arms and legs.
What are the 4 parts of the body? ›The human body is a single structure but it is made up of billions of smaller structures of four major kinds: cells, tissues, organs and systems.
What are 11 body parts that have 3 letters? ›- Eye.
- Hip.
- Arm.
- Leg.
- Ear.
- Toe.
- Jaw.
- Rib.
Altogether there are seventy-eight main organs within the human body. These organs work in coordination to give rise to several organ systems. Among these 78 organs, five organs are considered vital for survival. These include the heart, brain, kidneys, liver and lungs.
What are the 8 body functions? ›The 8 body systems are, circulatory, immune, skeletal, excretory, muscular, endocrine, digestive, nervous and respiratory.
What are the 3 parts of body? ›
The three main parts of the body are: the head, the trunk and the limbs (extremities). The head is composed of the cranial and facial parts. It contains the brain, the centre of the nervous system.
What are the 9 body systems? ›The nine major organ systems in the human body are the integumentary system, the musculoskeletal system, the respiratory system, the circulatory system, the digestive system, the excretory system, the nervous system, the endocrine system, and the reproductive system.
What are the 2 most important body parts? ›While your heart is a vital organ, the brain (and the nervous system that attaches to the brain) make up the most critical organ system in the human body. The human nervous system is responsible for coordinating every movement and action your body makes.
Which organ works 24 hours? ›Brains can work 24 hours a day with no rest.
Are there 15 systems in the human body? ›The human organism consists of eleven organ systems. They are Integumentary System, Skeletal System, Muscular System, Nervous System, Endocrine System, Cardiovascular System, Lymphatic System, Respiratory System, Digestive System, Urinary System, and Reproductive System (Female and Male).
What are the 6 systems of the body? ›The six systems in the body of humans are Digestive systems, Immune system, Endocrine system, Reproductive system, Skeletal system and Respiratory system.
What are the 12 organ systems of the body quizlet? ›- Integumentary System. Components: Skin and associate structures, such as hair, fingernails and toenails, sweat glands, and oil glands. ...
- Skeletal System. ...
- Muscular System. ...
- Nervous System. ...
- Endocrine System. ...
- Cardiovascular System. ...
- Lymphatic System and Immunity. ...
- Respiratory System.
- Brain. The brain is the body's control center. ...
- Heart. The heart is the most important organ of the circulatory system, which helps deliver blood to the body. ...
- Lungs. The lungs work with the heart to oxygenate blood. ...
- Liver. The liver is the most important organ of the metabolic system. ...
- Kidneys.
The outside human body consists of the five basic parts, the head, neck, torso, arms, and legs.
What are the 5 main body functions? ›The basic processes of life include organization, metabolism, responsiveness, movements, and reproduction.
Can you list the names of your body parts? ›
- Human Mouth. The mouth helps us to eat food. The digestion of food begins from the mouth. ...
- Shoulder. Shoulder. The human shoulder is made up of three bones. ...
- Knee. knee. ...
- Neck. Neck. ...
- Arms. Arm. ...
- Chest. Chest. ...
- Tongue. Tongue. ...
- Stomach. Stomach.
EAR,LEG,ARM,JAW,GUM,TOE,LIP,HIP,RIB... Very good, !
What are the 11 body systems for kids? ›Many scientists divide the body into 11 separate organ systems: muscular, skeletal, circulatory, respiratory, digestive, urinary, endocrine, nervous, integumentary, reproductive, and immune.
What are the 5 organs you can't live without? ›- Spleen. This organ sits on the left side of the abdomen, towards the back under the ribs. ...
- Stomach. ...
- Reproductive organs. ...
- Colon. ...
- Gallbladder. ...
- Appendix. ...
- Kidneys.
Publisher Summary. This chapter reveals that blood, which constitutes approximately 8% of human body weight, is one of the largest organs and the main means of transport for the exchange of substances between the organs. Blood plays an important role in the defense and repair processes of the body.
What are the top 10 organs in the human body? ›The ten largest organs in the body are – skin, liver, brain, lungs, heart, kidney, spleen, pancreas, thyroid and joints. Let us discover interesting information related to the main largest organs in the human body.
What are the functions of the 12 body systems? ›| Body System | Primary Function |
|---|---|
| Cardiovascular/Circulatory | Blood circulation |
| Digestive | Processing food |
| Endocrine | Hormone production |
| Urinary | Waste elimination |
What are the different systems of our body? The different systems of our body include- cardiovascular system, endocrine system, digestive system, respiratory system, excretory system, lymphatic system, nervous system, muscular system, and skeletal system.
What are the 6 functions of human life? ›These many functions can be summarized in terms of a few that we might consider definitive of human life: organization, metabolism, responsiveness, movement, development, and reproduction.
What is 3% of the human body? ›Nitrogen comprises 3% of the human body by mass. It is found in all organisms in molecules such as amino acids (which make up proteins), nucleic acids (DNA and RNA), and adenosine triphosphate (ATP), an essential energy transfer molecule.
What are the main parts of the body Grade 1? ›
Your body is made up of many parts: your hair, eyebrows, eyes, nose, cheeks, mouth, chin, ears, brain, skull, neck shoulders, arms, elbows, wrists, forearms, palms, fingers, hips, legs, knees, ankles, feet, toes, heels. Your organs and body parts work together to keep your body working well; they are a system.
How many body parts are there? ›An average adult human body has 206 bones, 650 muscles, and 78 organs. Hundreds if counted individually.
What are the 25 elements of the human body? ›- Arsenic.
- Chromium.
- Copper.
- Carbon.
- Cobalt.
- Calcium.
- Chlorine.
- Fluorine.
- Integumentary System. Forms external body covering and protects deeper tissue from injury e.g. hair, skin & nails.
- Nervous System. ...
- Skeletal System. ...
- Endocrine System. ...
- Muscular System. ...
- Cardiovascular System. ...
- Lymphatic System. ...
- Respiratory System.
Felix's team took a survey for the most attractive body parts of men and women and here's what they found: Men cited women's faces as being their most attractive attribute by 46%. In second place, women's butts came in at 18% followed by hair at 11%. Legs, breasts, eyes, and others composed the remaining 26%.
What is the most used body part? ›Feet are the most used and abused parts of the human body. With each step, minor abnormalities in foot structures or footwear that don't fit right, or both, can result in such conditions as knee pain, ankle pain, corns & calluses, blisters, bunions and Plantar Fasciitis (heel pain).
What is the least important body part? ›The appendix may be the most commonly known useless organ.
Many years ago, the appendix may have helped people digest plants that were rich in cellulose, Gizmodo reported. While plant-eating vertebrates still rely on their appendix to help process plants, the organ is not part of the human digestive system.
The brain is arguably the most important organ in the human body. It controls and coordinates actions and reactions, allows us to think and feel, and enables us to have memories and feelings—all the things that make us human.
What are the 3 most important body systems? ›Body Systems Lesson For Kids | Circulatory, Digestive & Respiratory.
What organs can you live without? ›You'll be surprised as to how much you could lose and still live. You can still have a fairly normal life without one of your lungs, a kidney, your spleen, appendix, gall bladder, adenoids, tonsils, plus some of your lymph nodes, the fibula bones from each leg and six of your ribs.
What organ works at 3am? ›
1-3am is the time of the Liver and a time when the body should be alseep. During this time, toxins are released from the body and fresh new blood is made.
What organ is cleansing at 4am? ›Primary Meridian: Liver
If you're waking up in the middle of the night after a cocktail or two, it's because your liver is working in overdrive to relieve your body of excess toxins. The liver cleanses our blood and when this process gets interrupted, it can result in low energy and feelings of angst the following day.
It's your head! Yes, your head is growing old faster than the rest of your body. But you don't need to stress about it a lot as it is only so by nanoseconds -90 billionths of a second over 79 years, to be precise.
What is the all body parts name? ›Ans. The outside human body consists of the five basic parts, the head, neck, torso, arms, and legs.
What are all the body parts in the body? ›The nine major organ systems in the human body are the integumentary system, the musculoskeletal system, the respiratory system, the circulatory system, the digestive system, the excretory system, the nervous system, the endocrine system, and the reproductive system.
How many parts are in a human body? ›Altogether there are seventy-eight main organs within the human body. These organs work in coordination to give rise to several organ systems. Among these 78 organs, five organs are considered vital for survival.
What are the 4 major parts of human body? ›The human body is a single structure but it is made up of billions of smaller structures of four major kinds: cells, tissues, organs and systems.
What are the biggest body parts? ›The largest internal organ (by mass) is the liver, with an average of 1.6 kilograms (3.5 pounds). The largest external organ, which is also the largest organ in general, is the skin. The longest muscle is the sartorius muscle in the thigh.
What is the hard part of the body? ›Tooth enamel is the hardest substance in the human body, but it needs your help to keep it strong in the fight against cavities.
What are the 3 main parts of the body? ›The three main parts of the body are: the head, the trunk and the limbs (extremities). The head is composed of the cranial and facial parts. It contains the brain, the centre of the nervous system.
What are the nine parts of the human body? ›
According to anatomy studies [50], human body parts can be divided into nine different parts by position: the head, neck, chest, abdomen, pelvis, back, hip, extremity, and trunk.
Which four body parts are 2 in number? ›Only hands, legs and sense organs(Except the tongue) are two in number. Q.