PNS
True/False sensory information enters posteriorly
true
when running away from a bear does you digestion speed up or slow down
slow down
what are the three categories of the functions of blood
transport, protection, regulation
what is the deepest heart muscle
endocardium
what is cardiac ourput
HRxSV
What kind of reflex involves flinching when startled
innate reflex (unconscious thought)
neurotransmitter receptors that bind to norepinephrine and epinephrine are called
adrenergic receptors
what are the two parts that make up blood
plasma, formed elements
what are the four chambers of the heart
right atrium left atrium right ventricle left ventricle
what is bradycardia
<60bpm
Reflex when you touch a hot pan and jerk your hand away
withdrawal reflex
what are the two major types of androgenic receptors
alpha and beta receptors
what is viscosity
thickness of blood
valves between atrium and ventricles
AV valves
what do baroreceptors detect
blood pressure chnages
afferent neurons are _____ nuerons
sensory neurons
the preganglionic and postganglionic neurons communicate via which neurotransmitter
Ach
name a leukocyte
Neutrophil◦Lymphocyte◦Monocyte◦Eosinophil◦Basophil
what valve pumps blood to the lungs
pulmonary valve
what are the three factors of stroke volume
preload, contractility, afterload
Definition of myotomes
groups of muscles that are all innervated by the same spinal nerve.
cholinergic receptors
receptors that bind to ACh
what are the three steps of homeostasis for blood
vascular spasm, platelet plug formation, coagulation
what happens during the P wave
atrias begin depolarizing
what is afterload
pressure that must be overcome for ejection