For our new blog today, we will be exploring human body parts that start with T. There are many different body parts that fit into this category, so we will just be scratching the surface. Among the body parts that begin with the letter “T,” we will study some more common and a few less well-known. Keep reading to learn more!
Human Body Parts That Start With T
Our tongues are one of our most important body parts. They help us speak, taste food, and swallow. Teeth are also essential – they help us chew food and protect our gums. Testicles are another important part of the male anatomy. They produce sperm and testosterone. There are many other human body parts that start with “T.” They are:
|Tear Duct||Thoracic Bones||Tongue|
|Temporal Bone||Thoracic Muscles||Trachea|
|Temporal Fascia||Thoracic Nerves||Transverse Ligament Of Atlas|
|Temporal Lobe (Cerebrum)||Thumb||Trigeminal Cave|
|Temporomandibular Joint||Thumb Muscles||Trigeminal Nerve|
|Testicular Arteries||Thyroid Artery||Trochlear Nerve|
|Testicular Vessels||Thyroid Cartilage||Turbinate Bones (Conchae)|
|Third Ventricle||Tibial Nerve|
Discussion about the Parts
- Tarsus: The tarsus is the ankle bone. It’s a small, weight-bearing bone in the foot that connects to the five long bones of the foot. A joint in the ankle is called the tarsus, which allows the ankle to move up and down. The tarsus is one of several human body parts named after animals. Other examples include carpus (wrist), metacarpus (palm), and phalanges (toes).
- Tear Duct: The tear duct is a small passageway that drains tears from the eye into the nose. It is also called the lacrimal duct or nasolacrimal duct. The tear duct begins at the inner corner of each eye and winds its way down through the bones of the orbit (eye socket) to reach the nose. It enters the nasal cavity through a small opening called the inferior meatus. Several tear glands produce tears in different parts of each eye. They help keep your eyes moist and lubricated and help wash away debris and foreign particles. Tears also contain enzymes that kill bacteria on the surface of your eyes.
- Temporal Bone: The temporal bone is one of the bones in the human skull. It covers the ear and the joint between the skull and jaw. This bone also contains several critical anatomical structures as well as blood vessels. Four parts make up the skull: the two squamous bones, the two petrous bones, the mastoid bone, and the occipital bone. The squamous bone forms the roof and sides of the skull, while the petrous bone forms most of the base of the skull. The mastoid bone goes behind the ear, and the occipital bone is at the back of the skull.
- Temporal Fascia: The temporal fascia is a layer of connective tissue in the human body. It’s in front of the ear and extends from the outer side of the eyebrow to the upper corner of the mouth. The temporal fascia also attaches to the deep muscles of the cheek and temple, including the zygomaticus major (a muscle that elevates the corner of the mouth) and orbicularis oculi (a muscle that closes the eyelids).
- Temporal Lobe (Cerebrum): The temporal lobe is one of the four main lobes of the brain. It’s located just behind the eye and is responsible for a few crucial functions. The temporal lobe houses the primary auditory cortex, responsible for processing sound. Damage to this area can cause hearing impairment or even deafness. The temporal lobe also contains the hippocampus, which plays an important role in memory formation and navigation.
- Temporomandibular Joint: The Temporomandibular joint (TMJ) is a small hinge joint between the lower jaw (mandible) and the temporal bone in the skull located in front of the ear. This joint allows the mandible to move up and down and side to side, making it possible to talk, chew, and yawn.
- Testicular Arteries: The testicular arteries are two small arteries that supply blood to the testicles. The right testicular artery arises from the aorta, while the left testicular artery arises from the inferior vena cava. Each testicular artery courses through the spermatic cord and enters the scrotum, where it branches into numerous smaller vessels that supply blood to the testicles.
- Testicular Vessels: The testicular vessels are a network of vascular tissue that transport blood to and from the testes. The testicular arteries are the saddles of the aorta that supply blood to the testes, while the ovarian veins drain blood away from the testes. The anatomy of these vessels is important for understanding various clinical conditions, such as hydroceles, varicoceles, and torsion of the testis. Hydroceles are fluid-filled sacs that can develop around the testicle, while varicoceles are dilated veins within the scrotum that may cause discomfort or pain.
- Testis: Testicles, also called testes or balls, are oval-shaped organs that produce sperm and testosterone in men. Each testicle is about 1.5 inches long and 1 inch wide. They reside inside the scrotum, a sac of skin below the penis. Two of the main functions of the testes are to produce sperm and produce testosterone. There is sperm production inside the seminiferous tubules, which are coiled tubes inside the testes. The cells that produce sperm are called spermatogonia. These cells give rise to spermatocytes, which divide to form spermatozoa (sperm).
- Third Ventricle: There are four cavities filled with fluid called ventricles in the brain. The third ventricle lies inside the cerebral cortex. Located in the diencephalon, the central portion of the brain includes the thalamus and hypothalamus. The third ventricle is a thin, rod-shaped cavity that runs vertically through the diencephalon. It’s flanked on either side by cerebral crus or pillars, which are bundles of white matter that help support and connect the brain’s two hemispheres.
- Thoracic Artery: Thoracic artery is a part of the human body that runs down the chest and supplies blood to the heart. The artery is on either side of the spinal cord. It branches off from the aorta, just above the heart. It provides oxygen-rich blood to the muscles in the chest and upper arm. It also delivers nutrient-rich blood to the heart itself. Damage to this artery can lead to serious health complications, including heart attack and stroke.
- Thoracic Bones: The Thoracic Bones are a group of bones that make up the chest in the human body. There are 12 thoracic bones in total, divided into four groups. The first group comprises the three ribs closest to the head, while the second group contains the following three ribs. The third and fourth groups each include four ribs. The thoracic bones work together with other bones, muscles, and ligaments to protect vital organs like the heart and lungs. They also provide support for the arms and shoulders and allow for movements of the torso.
- Thoracic Muscles: The thoracic muscles are the muscles of the chest. Aside from breathing, they are also responsible for the movement of the shoulder blades and the arms. The most important muscle of the thoracic region is the diaphragm, which is responsible for breathing.
- Thoracic Nerves: Thoracic nerves are a group of 12 pairs of nerves that arise from the spinal cord and originate in the spine’s thoracic region. Sensory and motor innervation occurs in the chest, abdomen, and back skin.
- Thumb: Among the five digits on the human hand, the thumb is one of the fingers. It is the shortest and strongest of the fingers and is opposable to the other four fingers – that means that it can move independently from them and oppose them (i.e., touch them). This gives us a great deal of dexterity with our hands, which enables us to perform many tasks that would be otherwise impossible.
- Thumb Muscles: The thumb has two muscles: the flexor pollicis longus and the extensor pollicis Brevis. These muscles work together to move your thumb. The flexor pollicis longus muscle is located in the forearm and attaches to the distal phalanx of the thumb. This muscle helps you bend your thumb. Situated in hand, the extensor pollicis Brevis muscle attaches to the proximal phalanx of the thumb. This muscle helps you extend or straighten your thumb. These muscles are essential for picking up a glass or turning a doorknob. Strong thumbs are necessary for gripping objects firmly.
- Thyroid Artery: The thyroid artery is a small blood vessel that delivers blood to the thyroid gland. The thyroid gland resides in the neck, just below Adam’s apple. It is responsible for producing hormones that assist in regulating metabolism in the body. The thyroid artery is essential because it helps deliver oxygen and nutrients to the thyroid gland. These nutrients produce thyroid hormones. If the thyroid artery becomes blocked, it can cause problems with hormone production and lead to a variety of health problems.
- Thyroid Cartilage: The thyroid cartilage is one of the six cartilages of the larynx in the human body. It is a thin, C-shaped piece of hyaline cartilage that forms the anterior wall of the larynx and forms part of the vocal fold. The thyroid cartilage got its name for its resemblance to the shape of a thyroid gland.
- Tibial Arteries: Tibial arteries are two large arteries located on the front of the leg, one on each side of the tibia (shinbone). They supply blood to the muscles and skin on the front of the leg. The tibial arteries continue with the femoral artery, a large artery in the thigh—the femoral artery branches into several smaller arteries traveling down the leg, including the tibial arteries.
- Tibial Nerve: The tibial nerve is a nerve that runs down the leg and into the foot. It provides sensation to the skin on the front and side of the ankle and foot and motor power to some of the muscles in the lower leg. The tibial nerve also helps to control peeing. Damage to this nerve can cause pain, numbness, or weakness in the leg and foot.
- Toes: Toes are one of the most critical parts of our bodies! They help us balance, walk, and stand. We have ten toes – five on each foot. Each toe has three bones inside it, connected by two joints. The big toe is the longest and strongest toe. The other toes are called the second, third, fourth, and fifth toes. Toes also have muscles and tendons that help them move. The bones in our feet are some of the most complex bones in our bodies. They protect our feet from injuries when we walk or run. Toes also help us grip things like shoes and socks, so they don’t slip off.
- Tongue: The tongue is one of the largest muscles in the human body that goes into the mouth. Its main function is to aid in chewing and swallowing, and tasting. The tongue is also essential for speaking. There are four different taste buds in the language: sweet, sour, salty, and bitter. These taste buds are responsible for sending information about what we’re eating or drinking to our brains. It consists of many small muscles that work together to move it around in the mouth. These muscles can also control the shape of the tongue, which is essential for making certain sounds.
- Trachea: The trachea is a vital part of the human body, responsible for transporting air to and from the lungs. It has a lot of cartilage rings that keep it open and flexible, and it also contains cilia, which help cleanse the air as it passes through. The trachea’s in the neck, just below the larynx. It begins at the base of the throat and extends into the thoracic cavity, where it splits into two smaller tubes. These bronchi lead to the lungs, where gas exchange takes place between blood and air.
- Transverse Ligament of Atlas: The transverse ligament of the atlas is a ligament in the human body. It connects the posterior tubercle of the atlas to the anterior tubercle on the opposite side. It is the purpose of the transverse ligament to prevent the atlas from sliding forward onto the axis and limit the rotation of the head. Injury to this ligament can cause instability of the atlas, leading to chronic headaches, vertigo, and even stroke.
- Trigeminal Cave: The trigeminal cave is a small hole in the human skull that houses the trigeminal nerve. The nerve controls some of the muscles in the head and sensations in the face. This artery supplies blood to the brain, and so the trigeminal cave is an essential structure for maintaining healthy brain function.
- Trigeminal Nerve: Trigeminal nerve is responsible for transmitting sensory information from your face to your brain. The largest cranial nerve has three branches – ophthalmic, maxillary, and mandibular. Each branch innervates a different area of your face. The ophthalmic branch supplies sensation to your forehead, eye, and upper nose; the maxillary branch supplies sensation to your lower jaw, cheek, and upper gum. The mandibular branch supplies sensation to your lower jaw and chin.
- Trochlear Nerve: The trochlear nerve is one of the twelve cranial nerves. It arises from the brain’s fourth ventricle and innervates the superior oblique muscle of the eye. The trochlear nerve controls the motion of the superior oblique muscle, which rotates the eye downward and inward. There is a possibility that when this nerve is damaged, it may lead to double vision and difficulty turning or tilting your head.
- Turbinate Bones (Conchae): The turbinate bones, also known as the conchae, are a set of scroll-like bones in the nasal cavity. They got their name for their resemblance to a conch shell. There are three turbinate bones on each side of the nose. It plays an essential role in the human body by warming and moistening the air we breathe. They also help filter out dust and other particles from the air before they reach our lungs. The turbinates cover with a layer of mucous that helps trap these particles and keep them from entering our lungs.
That’s it for our list of human body parts that start with T! We hope you enjoyed learning about these different anatomical structures and their functions. Which one was your favorite? Let us know in the comments below. Make sure to share this