circle of Willis – (also, arterial circle) anastomosis located at The bottom of your Mind that ensures continual blood supply; fashioned from branches of the internal carotid and vertebral arteries; materials blood to your brain.

acclimatisation – strategy of adjustment that the respiratory program tends to make because of chronic exposure to substantial altitudes.

cartilage – semi-rigid connective tissue observed over the skeleton in locations exactly where versatility and easy surfaces help motion.

acrosome – cap-like vesicle Positioned with the anterior-most area of a sperm which is prosperous with lysosomal enzymes capable of digesting the protecting levels encompassing the oocyte.

chordae tendineae – string-like extensions of hard connective tissue that stretch from your flaps in the atrioventricular valves towards the papillary muscles.

Metabolism Anabolic reactions are building reactions, and so they take in Power. Catabolic reactions split supplies down and release Electricity. Metabolism consists of both equally anabolic and catabolic reactions.

anterior horn – gray subject check here from the spinal twine containing multipolar motor neurons, from time to time often called the ventral horn.

cornea – fibrous covering on the anterior region of the attention that may be clear to make sure that mild can go through it.

aortic sinuses – compact pockets while in the ascending aorta near the aortic valve which might be the places with the baroreceptors (extend receptors) and chemoreceptors that bring about a reflex that aids during the regulation of vascular homeostasis.

From the chest and abdomen, a range of interior membranes preserve big organs like the lungs, heart, and kidneys individual from Some others.

aortic hiatus – opening during the diaphragm that permits passage with the thoracic aorta to the abdominal area the place it gets to be the abdominal aorta.

alveolar duct – little tube that leads within the terminal bronchiole towards the respiratory bronchiole which is the point of attachment for alveoli.

Anabolism is the procedure whereby scaled-down, easier molecules are merged into greater, extra intricate substances. Your body can assemble, by employing Vitality, the complicated chemical compounds it requirements by combining little molecules derived with the foods you take in

brachial plexus – nerve plexus linked to the lessen cervical spinal nerves and very get more info first thoracic spinal nerve.