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Peripheral Nerves & Endocrine system (Cranial Nerves (Olfactory…
Peripheral Nerves & Endocrine system
Cranial Nerves
Olfactory
smell
optic
sight
oculomotor
moves eyes, pupil
trochlear
moves eyes
trigeminal
face sensation
abducens
face sensation
fracial
moves face, salivate
vestibulocochlear
hearing, balance
glossopharyngeal
taste, swallow
vagus
heart rate, digestion
accessory
moves head
hypoglossal
moves tongue
The divisions of the autonomic nervous system
the sympathetic division
originates in the thoracolumbar segments of the spinal cord
synapses in ganglia near spinal cord
short pre-ganglionic and long postganglionic neuron
neurotransmitters: epinephrine and norepinephrine
effector organs- eye. lungs, heart etc
the parasympathetic division
originates in brainstem and sacral
synapses in ganglia near effector organ
long pre-ganglionic and short postganglionic neuron
neurotransmitters: acetylcholine
effector organs:salivary glands, digestive & reproductive organs
endocrine organs
melatonin
controls sleep cycles, alertness & temperature
hypothalamus
produces hormones the stimulates the pituitary gland
pituitary gland
master gland that signals their hormones when needed
anterior lobe
-makes & releases hormones under the control of the hypothalamus
posterior lobe
stores & secretes hormones that are made in the hypothalamus,such as antidiuretic hormone and oxytocin& releases them to the rest of the boy as necessary
antidiuretic hormone
regulates fluid balance by increasing urine output
oxytocin
stimulates contraction of the uterus during labor & mille or ejection from alveoli
Hormones
follicle stimulating hormone
stimulates egg matoration in the ovary & release sex hormones. both involved with development of ovaries & testes
adrenocorticotropic hormone
stimuleates the adrenal gland to releasse cortisol. human growth during infancy & puberty
prolactin
intiates & maintains milk secretion
thyroid stimulating hormone
control basal metabolic rate by releasing thyroxine
melanocyte stimulating hormone
stimulates production of melanin in the skin