what are merkel cells? what are there function? where are they located? and they encapsulated or unencapsulated?
Located in the basil layer of the epidermis of the skin. Light touch receptors (mechanoreceptors). give rise to hair to make goose bumps. they are unencapsulated.
what are meissener corpuscles?
Mechanoreceptors.
Where are meisenner corpuscles located?
dermal papillae of hairless skin. particularly nipples, external genitalia, finger tips, soles of feet, and eyelids
What do meisenner corpuscles do?
light pressure receptors, discriminative touch, vibration of low frequency. readily adapting
are meisenner corpuscles encapsulated or unencapsulated?
encapsulated
What are pacinian corpuxles? (lamellated corpuscles)
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what is an exteroceptor?
a receptor that receives external stimuli.
What is a proprioceptor?
a receptor that senses relative position of neighboring body parts. located in muscles joints tendons and inner ear.
what is an interoceptor?
a receptor that detects stimulus within the body, such as blood pressure or blood oxygen level
what are pacinian corpuscles?
receptors that sense deep pressure and stretch, vibration at a high frequency. rapidly adapting
Where are pacinian corpuscles located?
located in the dermis, hypodermis, periosteal, mesentery, tendons, ligaments, joint capsules, most abundant on fingers, soles of feet, external genitalia and nipples.
Are pacinian corpuscles en capsulated or unenapsulated?
encapsulated.
What are ruffini endings?
mechanorecptors (deep pressure and stretch) slow or non-adapting
where are ruffini endings located?
deep in dermis, hypodermis, and joint capsules.
The olfactory _____ ______ arise from olfactory ________ _____ and pass through the __________ _____ of the _______ ____ to synapse in the olfactory ____
The olfactory nerve fibers arise from olfactory receptor cells and pass through the cribriform plate of the ethmoid bone to synapse in the olfactory bulb
What is the mnemonic for the cranial nerves? (I didn't make this up) and what are their names.
Oh, oh, oh, to touch and feel (a) virgin girls vagina and hymen. Olfactory, optic, oculomotor, trochlear, trigeminal, abducens, facial, (a), vestibulocochlear, glossopharyngeal, vagus, accessory, hypoglossal.
what is the mnemonic for whether nerves are motor or sensory?
some say marry money, but my brother says big boobs matter more.
What is anopsia?
a medical defect that entails loss of vision. usually only affecting one area causing only partial blindness.
What is anosmia?
lack or loss of smell
What is the lateral geniculate nucleus?
primary relay center for visual information received from the retina of the eye.
Where is the lateral geniculate nucleus located?
in the thalamus
Which nerves derives from the superior orbital fissure and what is the mnemonic?
"Live Frankly To See Absolutely No Insult" - for Lacrimal, Frontal, Trochlear, Superior Division of Oculomotor, Abducens, Nasociliary and Inferior Division of Oculomotor nerve
What are the parasympathetic function of the ciliary muscle?
flattens lens for far vision
lack of hearing
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how many branches does the trigeminal nerve have?
three
What foramen does the trigeminal nerve derive from?
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Where does each branch of the trigeminal nerve go?
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What is the muscle of mastication?
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What is pterygoid palatine ganglia?
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What does the cochlear nerve derive from and what does it do?
vestibulocochlear nerve and it carries sound waves from the cochlea to the inner ear to the brain.
What does the vestibular nerve derive from and what does it do?
transmits sensory information
What muscle does the glossopharyngeal (crnial nerve nine) innervate?
stylopharyngeus muscle
What is the parotid gland ganglia called? and what does it do?
Otic ganglion. salivation.
study nine 7 ad 5 very well.
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Where does cranial nerve 11 enter and exit? and what does it do?
enters at foremen magnum exits at jugular foreman
What is internal acoustic meatus?
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what is the phrenic nerve
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What is the function of musculocotaneous? what group?
flexion of the anterior arm. sensation of the forearm.
Is the median nerve flexor or extender?
flexor
ulnar nerve flexor of 1 and 1/2
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Is the radial nerve floxor or extensor? and which part of the arm?
extensor. back part of arm.
What does the axillary nerve innervate?
deltoid and teres minor, come skin of shoulder sensation.
What nerve innervates the rhomboid muscle?
dorsal scapula
What does the long thoracic nerve go innervate?
serratus anterior muscle
What muscle does the suprascapular go to?posterior division on the femoral nerve
supraspinous and infrapsinous muscles, shoulder joint
What are the nerve roots of the femoral nerve?
L2-L4
What does the femoral nerve serve?
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What nerve innervates rectus femoris, vastus medialis, vastud lateralis, and vastus intermidias?
poserior division of the femoral nerve
what nerve innervates pectineous, sartorius?
anterior division of the femoral nerve.
What innervates adductor magnus, longus, and brewis. Grascilias muscle of medial_____.
obturator, thigh
What are the branches of the sciatic?
common fibular, tibial sural, deep fibular, superficial fibular.