70 + Body Parts That Start With A With Meaning In The World

Which body parts start with the letter A? There are many, and they’re all fascinating. The arm is one of the most important body parts that start with A because it’s what you used to interact with your environment. But there are other interesting facts about each body part starting with a.

Ever wonder what the word for a body part starts with? Well, you can find out here! From your head to your toes, this blog post will cover everything.

This article will also include some fun facts about each body part. You’ll be surprised by how much you learn from reading this article! Read on to find out more!

All The Body Parts That Start With A

It’s interesting to know the alphabetized list of body parts. Some of the most popular parts of the body that start with the letter A are:

the Abdomen, Abdominal Aorta, Abdominal cavity, Abdominal muscles, Abdominal veins, Abducent nerve, Abs, Accessory Cephalic Vein, Accessory nerve, Achilles’ tendon, Adam’s apple, Adductor Pollicis Muscle, Adenoids, Adipose tissue, Adrenal glands, Airway, Alimentary canal, anterior communicating artery, anterior longitudinal ligament, Amniotic Fluid, ampulla, amygdala (part of the brain), anterior cerebral artery, arachnoid membrane, Ankle, ankle joint ligaments, ankle joint ligaments, ankle muscles, Anterior Sacroiliac Ligament, Anterior Talofibular Ligament, Anterior Tibial Artery, anus, annular ligament, anvil (in the ear), Aorta, ascending aorta Appendix, Arch (foot), Arm, arm muscles, armpit, abductor digit minimi muscle, Arteries, Ascending Colon, Atrium, axis vertebra, axillary artery, atlas vertebra, anterior arch, auditory tube, Aureole, Acetabulum, Axillary Nodes, Acromioclavicular joint, anterior scalene muscle, arterial circle.

An Introduction To Body Parts Beginning With A

Many parts of the body start with A. Here we will explain some different parts of the body that start with “A”. We will discuss what makes up the parts, what their functions are, where is their position, and more interesting information, etc.


Arms are the limbs of the human body. On either side of the shoulders, they are attached to the torso by way of elbow joints.

Muscles extend from them at various points along their length so that they can be used in a variety of movements. Arms have upper, middle, and lower parts. The middle parts are “elbows” and the lower parts are “wrists”.

They can move in many different directions with just about any number of motions possible with muscles tensed or relaxed.

For example, if your arm is pointing straight out in front of you when your shoulder is completely relaxed, you would still be able to lift it towards you or pull it back down towards you or hinge it


  • The main function of the arms is to either help with locomotion by holding objects or moving them about or manipulating objects.
  • Help in balance,
  • Press, and squeeze when we hug,
  • Often stand out from our bodies to point out directions or show us where something important is.
  • Reach for what we want and show how much we care.
  • Helps you stay warm or cool!

Adrenal glands:

The adrenal glands are the glands that sit on top of the kidneys and are oval-shaped. Each gland is about the size of a fig and weighs anywhere from 3 to 4 grams. The main job of the adrenal glands is to secrete hormones, such as adrenaline and cortisol.

These powerful hormones affect all cells in your body! They prepare our body for danger by increasing heart rate, improving reflexes, and suppressing less important functions during “fight or flight.””


  • The main function of the adrenal gland is to secrete cortisol and adrenaline
  • Secrete substances into the bloodstream in times of response like during a trauma, stressor, or injury.
  • Adrenaline causes increased sweating and heart rate
  • Slowing down digestion (which can cause nausea)
  • Narrowing of blood vessels (e.g. reduce menstrual bleeding)
  • Dilated pupils; blood flow to muscles
  • Constriction of lung airways
  • Quickly raises the body temperature making


The atrium is the enlarged cavity in humans and many other mammals near the top of the heart. The word atrium (plural: atria) comes from Latin, meaning “at the doors”.

Water passes through a disk or slit with tufts or cilia to keep the cavities clean.s circumference. On each side three pairs of these openings communicate with one another, so as to allow access from without into anyone chamber on that side; while there are two pairs that always open into the anterior.


  • The major function of the atrium is to receive erythrocytes or red blood cells and prepare them for entry into the body.
  • It receives blood from both ventricles, the right and left ventricles
  • And pumps it through to the two major blood vessels in the body – the coronary arteries
  • Helps regulate blood pressure by altering the blood volume in different parts of a person’s body


The abdomen is a large cavity or space referring to the anatomical area between the thorax and pelvis. In humans, it holds most of the digestive system, including the stomach and intestines.

It is typically considered as part of our torso, along with other body structures such as organs situated inside from the lungs to the pelvic bones. The abdominal region contains these key structures: aorta – aortic arch – celiac trunk – crura of diaphragm – dome of liver left lobe right lobe gall bladder – pancreas – spleen–stomach–transverse colon – descending colon–sigmoid flexure lesion ascending colon rectum. A spinal column runs vertically through this region connecting all.


  • Contains all the major organs that are part of your digestive system
  • Contains the lymphatic system (a type of immune system)
  • Linings of other veins and glands like the pancreas, kidneys, spleen/hepatic portal vein juncture (veins coming off from the liver).
  • Regulates food flow via passage through the alimentary canal

Adam’s apple:

The Adam’s apple, or “Adam’s apple”, was a term to describe the swollen vocal cord found in males.

Adam’s apple is made of cartilage. It only becomes prominent when men start to go through puberty because testosterone causes the voice box to become larger. Boys will grow Adam’s apple during adolescence while girls don’t.


  • To amplify the sound that comes from the vocal cords for maximum resonance
  • Protects the airway from food particles entering the mouth during eating and speaking
  • Protects your voice box from damage.


The ankle is the joint between the tibia (or shinbone) and fibula which are bones of the lower leg. The tibia runs down to below where your feet meet your body, while the fibula only runs down to about mid-calf.

The two bones connect at a hinge called “tibiofibular joint,” and can only move up or down due to the lack of a socket for motion in other directions..

Three ligaments help stabilize this joint from abnormal movement, including one from below by anchoring into the talus which is just above the ankle on top of your foot.


  • Helps you balance better on one foot or both feet during these activities
  • It also helps maintain stability in an off-balance position which can help us recover from slips and trips more easily
  • Provide support for the body while being an important joint
  • Prevents our feet from dangling on the ground when we are standing upright on two legs
  • Act as a platform that supports the entire weight of the upper part of the body


The appendix is a small, finger-sized tube of tissue that hangs from the large intestine. It’s located near the junction where the ileum attaches to the large intestine and just below the ileocecal valve.

The most important thing about our appendix is that we can live without it. That doesn’t mean you should let someone remove your appendix, though!

Some people do need their appendix out for medical reasons (like an infection). But most healthy adults and children who need to have an operation will survive fine even if their appendix gets removed.


  • Defend the body against harmful bacteria
  • Contains lymphoid tissue that helps train the immune system by developing immunity thereto.


Do you know body parts that start with a? There is an overwhelming number of body parts in the human anatomy. That’s why it can be hard to keep them all straight. Some are easy to remember, but others are just obtuse.

Lungs are easy to remember because of their function but it’s difficult to remember other body parts.. That’s why it’s important to be mindful of body parts that are being with a.