angiotensin II – protein made by the enzymatic action of ACE on inactive angiotensin I; actively leads to vasoconstriction and stimulates aldosterone release via the adrenal cortex.

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clotting – also referred to as coagulation; complex approach by which blood factors sort a plug to prevent bleeding.

dentin – bone-like tissue immediately deep into the enamel with the crown or cementum of the basis of the tooth.

Safety with the heart, lungs, along with other organs and buildings within the upper body creates a dilemma considerably various from that from the central anxious program. These organs, the function of which requires movement, growth, and contraction, should have a flexible and elastic protective covering. This kind of covering is provided by the bony thoracic basket, or rib cage, which forms the skeleton on the wall of your upper body, or thorax.

blood hydrostatic force – drive blood exerts versus the walls of a blood vessel or heart chamber.

The very first regulation of thermodynamics retains that Vitality can neither be produced nor wrecked—it could possibly only improve type. Your basic purpose as an organism is usually to eat check here (ingest) Electricity and molecules while in the foods you take in, convert several of it into gasoline for movement, sustain your body capabilities, and Construct and maintain your body structures. There are two varieties of reactions that attain this: anabolism and catabolism.

antibodies – (also, immunoglobulins or gamma globulins) antigen-particular proteins made by specialised B lymphocytes that secure the body by binding to foreign objects for instance bacteria and viruses.

carotid sinuses – tiny pockets near the base of The inner carotid arteries which might be the locations from the baroreceptors and chemoreceptors that trigger a reflex that aids within the regulation of vascular homeostasis.

ascending pathway – fibre structure that relays sensory information and facts from your periphery in the spinal cord and brain stem to other constructions with the Mind.

conducting zone – area of your respiratory program that includes the organs and structures that supply passageways for air and they are circuitously involved with gasoline exchange.

carbaminohemoglobin – compound of carbon dioxide and haemoglobin, and one of many ways that carbon dioxide is carried inside the blood.

abducens nerve – sixth cranial nerve; accountable for contraction of among the list of extraocular muscles.

azygos vein – originates within the lumbar area and passes in the diaphragm into your thoracic cavity on the ideal facet on the vertebral column; drains blood with the intercostal veins, oesophageal veins, bronchial read more veins, and various veins draining the mediastinal location; causes the exceptional vena cava.