5 Simple Techniques For human anatomy meaning

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

capsaicin – molecule that activates nociceptors by interacting that has a temperature-delicate ion channel which is the basis for “very hot” sensations in spicy food items.

brachiocephalic artery – solitary vessel located on the correct facet of the body; the first vessel branching within the aortic arch; gives increase to the ideal subclavian artery and the correct popular carotid artery; materials blood to The top, neck, higher limb, and wall with the thoracic location.

cleavage furrow – contractile ring that forms close to a cell all through cytokinesis that pinches the mobile into two halves.

mobile membrane – membrane encompassing all animal cells, made up of a lipid bilayer interspersed with many molecules; often known as plasma membrane.

atrial reflex – (also, called Bainbridge reflex) autonomic reflex that responds to stretch receptors in the atria that send impulses into the cardioaccelerator location to increase HR when venous movement into your atria boosts.

chorionic villi – projections on the chorionic membrane that burrow into the endometrium and establish to the placenta.

blood typing or grouping – blood examination for identification of blood style utilizing commercially ready antibodies and tiny samples of blood.

aortic arch – arc that connects the ascending aorta into the descending aorta; ends for the intervertebral disk among the fourth and fifth thoracic vertebrae.

descending tract – central nervous process fibres carrying motor instructions in the brain into the spinal cord or periphery.

class switching – capability of B cells to change the class of antibody they deliver without the need of altering website the specificity for antigen.

cardiac reflexes – number of autonomic reflexes that permit the cardiovascular centres to control heart functionality based on sensory information from many different visceral sensors.

axillary vein – main vein from the axillary location; drains the higher limb and results in being the subclavian vein.

azygos vein – originates in the lumbar area and passes throughout the diaphragm into the thoracic cavity on the appropriate aspect with get more info the vertebral column; drains blood from your intercostal veins, oesophageal veins, bronchial veins, and also other veins draining the mediastinal region; brings about the exceptional vena cava.