neuro endocrine system structure and function Flashcards

1
Q

neuroendocrine functions

A

detecting changes inside and outside body, relay sensory information to CNS, interprets sensory information and coordinating responses, relaying signals to effectors, prodcues movement, regulates homeostasis

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2
Q

divisions of NS

A

CNS- brain and SC, peripheral- all other nerves

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3
Q

structure of neuron

A

cell body which sustains metabolic activity and contains nucleus, axons wrapped in mylein sheath that transmits info away from cell body, dendrites transfer ifno to cell body

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4
Q

cerebrum

A

sensory perception, initiation and control of voluntary muscle contraction
conscious though problem solving, communication

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5
Q

cerebellum

A

coordination of movement, proprioception, posture, balance

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6
Q

diencephalon

A

located between midbrain and cerebrum, contains thalamus, hypothalamus and pineal glans
linked to nervous and endocrine responses

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7
Q

brain stem

A

entry point of SC to brain

connects densely to corpus callosum between the two cerebral hemispheres

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8
Q

plexus (BUNDLE OF NERVES)

A

cervical, lumbar, brachial, sacral, coccygeal

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9
Q

PNS

A

comprises a network of nerves which orginate from the brain (cranial nerves) or spinal cord (spinal nerves)
sensory nerves- carry message to CNS
motor nerves (efferent)- carry messages from CNS

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10
Q

somatic and autonomic NS

A

S- skeletal muscle contraction ,visual focusing, controls voluntary actions
A- vasoconstriction and vasodilation, smooth muscle contractions, heart rate, controls involuntary actions

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11
Q

autonomic NS

A

sympathetic (fight or flight), parasympathetic (rest and digest)

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12
Q

endocrine system structure

A

slow speed regulator of the body, utilising chemical messengers, hormones, to communicate instructions to the cells of the body
they are produced in specialised organs (endocrine glands)- hypothalamus, pituitary, pineal, pancreas, testes, ovaries

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13
Q

target cell response

A

to ensure the effect of any hormones will be specific to particularly cells there are specific receptors on cell membranes that function similarly to that of a lock and key

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