arteris and neck Flashcards
blood flowing from the heart throghout body and back is referrd to as?
systemic or general circulation
process of blood flow through the heart
oxygen depleted blood enters the rotten side of the superior.inferior venacava,through trivalve to right ventricle, then goes to pulmonary arteries, then to lungs when inhaled which is oxygenated, and exhaled as( carbon dioxide), RETURNS through pulmonary veins to the LEFT ATRIUM from lungs, OXYGENATED blood goes through the BICUSPID VALVE to the LEFT VENTRICLE, Then the oxygenated blood goes to the AORTA, , Finally the cycle is repeated when VENOUS BLOOD -(impure) is brought back again to the right Atrium
how is blood supplied to the head face neck?
common cartoid arteries, which splits into an internal/external cartoid artery
what is lymph vascular system referred to as
lymphatic system
How many lymph nodes in body, that act as barriers to infection?
100
study of nervous system is?
neurolgy
what are the four major parts of the brain
cerebrum- thought, emotion,memory
cerebellum- known as” little brain”, motor function/muscle/balance
pons- bridge
medulla oblongata- most vital part of brain
respiration/circulation,connects parts of brain to spinal column
what 3 subsystems make up the nervous system?
central or cerebrospinal
peripheral
autonomic
what is the central system?
composed of the brain /spinal cord
where does the spinal cord originate?
base of brain and extend to base of spine
how many pairs of spinal nerves does the spinal cord hold?
31
what is the peripheral composed of
sensory and motor nerves
autonomic controls what
respiratory,digetsive,circulatory, excretory, endocrine,reproductive, goes to internal organs
what 2 subsystems does the autonomic consist
sympathetic/parasympathetic
what happens in the syphmathetic state
blood pressure rises/bodys physiological
