The 2-Minute Rule for human anatomy and physiology

The 2-Minute Rule for human anatomy and physiology

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ampulla – inside the ear, the structure at The bottom of a semicircular canal that contains the hair cells and cupula for transduction of rotational movement of The top.

steady conduction – gradual propagation of the motion likely along an unmyelinated axon owing to voltage-gated Na+ channels Found alongside the whole size of your cell membrane.

atrioventricular bundle branches – (also, left or ideal bundle branches) specialised myocardial conductile cells that crop up from your bifurcation of your atrioventricular bundle and pass through the interventricular septum; result in the Purkinje fibres and in addition to the appropriate papillary muscle mass by means of the moderator band.

angiotensinogen – inactive protein within the circulation produced by the liver; precursor of angiotensin I; must be modified via the enzymes renin and ACE being activated.

ciliary body – clean muscle mass construction on the inside floor from the iris that controls the shape from the lens in the zonule fibres.

Bowman’s here capsule – cup-formed sack lined by a simple squamous epithelium (parietal area) and specialised cells termed podocytes (visceral surface area) that participate in the filtration course of action; receives the filtrate which then passes on to the PCTs.

carpal tunnel – passageway in between the anterior forearm and hand fashioned via the carpal bones and flexor retinaculum.

anterior median fissure – deep midline attribute on the anterior spinal cord, marking the separation between the best and still left sides on the twine.

articular disc – meniscus; a fibrocartilage construction observed in between the bones of some synovial joints; presents website padding or smooths actions in between the bones; strongly unites the bones together.

While in the upper body and abdomen, various internal membranes retain important organs like the lungs, heart, and kidneys different from Other individuals.

adrenal cortex – outer area from the adrenal glands consisting of multiple layers of epithelial cells and capillary networks that provides mineralocorticoids and glucocorticoids.

aldosterone – hormone developed and secreted by the adrenal cortex that stimulates sodium and fluid retention and will increase blood quantity and blood pressure.

alkaloid – substance, commonly from a plant source, that's chemically basic with respect to pH and may encourage bitter receptors.

allantois – finger-like outpocketing of yolk sac sorts the primitive excretory duct in the embryo; precursor to your urinary bladder.