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Anatomy and Phys.
Terms in this set (68)
Name the nerve plexuses in the body.
sacral, lumbar, brachial, cervical
Paralysis of the diaphragm and consequent dependence on a respirator is a result of damage to which nerve?
What are examples of exteroceptors?
touch, pain, temperature
If the ventral root of a spinal nerve were cut, what would be the result in the tissue or gegion that nerve supplies?
complete loss of voluntary movement
Wallerian degeneration is the _________.
degeneration of the axon and myelin sheath distal to an injury site
Nerves consist of all of the following
bundles of axon, schwann cells, myelin
shingles sores seen in a strip across the thorax or abdomen are an example of
dermatomes associated with spinal nerves
What cranial nerves are purely motor?
oculomotor, trochlear, abducens, accessory, hypoglossal
What cranial nerves are purely sensory?
optic, vestibulocochlear, olfactory
What cranial nerves are mixed?
trigeminal, facial, glossopharyngeal, vagus
A fall or improper administration of an injection tothe buttocks may injure a nerve of this plexus
The dorsal ramus that branches from a spinal nerve consists of ________.
both sensory and motor nerves serving the dorsal side of the body
Which of the following cranial nerves is responsible for being able to turn you eye laterally or to the side?
Which of the following is a proprioceptor?
golgi tendon organ
Pain receptors differ from other somatic receptors by?
adapting very little
You accidentally put your hand on a hot curling iron. Which types of receptors are involved in your response to this stimulus?
thermoreceptors and nociceptors
Which nerves arise from the brachial plexus?
median, ulnar, radial
What is bell's palsy?
causes paralysis of the side of the face
What causes bell's palsy?
A reflex that causes muscle contraction and shortening in response to muscle lengthening is called a ________ reflex and is demonstrated by the _______ reflex.
stretch and patellar
The "resting and digesting" division of the autonomic nervous system
Which of the following best exemplifies referred pain?
individual with gallstones feels pain in right shoulder
The autonomic nervous system
two divisions that counteract one another
Parasympathetic functions include
stimulation of stomach secretions and peristalsis
What are the two types of cholinergic receptors?
muscarinic and nicotinic
Which of the following fibers release NE or are adrenergic?
sympathetic postganglionic axons only
The somatic nervous system consists of nerve fibers that connect the CNS to the _________, whereas the autonomic system consists of fibers that connect the _________.
skin and skeletal muscles; CNS to visceral organs
What does ACh generally do to an organ?
What does NE usually do to an organ?
A drug that might be used specifically to reduce heart rate in cardiac patients may _______.
block beta adrenergic receptors from binding NE
What does sympathetic stimulation do to the pupils?
Sympathetic responses are generally widespread because _________.
NE and epinephrine are secreted into blood
What is the function of the mucus produced by the olfactory glands?
provides a medium for molecules to dissolve in
Pitchis to frequency of sound as loudness is to:
The function of the iris diaphragm is to:
regulate the amount of light entering the eye
The tiny skeletal muscles associated with the ossicles of the middle ear function to?
protect the hearing receptors from loud sounds
Nerve fibers from the medial aspect of each eye
cross over at the chiasma
When entering a dark room on a sunny day, why does it take some time to see in the dark room?
takes time for retina to rebuild its rhodopsin stores
Taste is 80% smell. The relationship between smell and taste is evidenced by the fact that both sensations are a type of
THe coduction of a sound vibration from the middle ear to the inner ear is by vibration of the
stapes in the oval window
WHen focusion on a distant object, the lens is _______.
Which of the following is true with regards to the ear?
sonds must viberate the oval window
A cochlear implant is most likely to be used for the treatment of _________.
Refraction of light
bending of light rays and accomplished by cornea
Ordinarily, it is not possible to transplant tissues from one person to another, yet corneas can be transplated with out tissue rejection. THis is because teh cornea is _________.
How fast does complete adaptation occur in taste receptors?
Receptors for this cranial nerve are located in the epithelium of the nasal cavity.
Supplies motor impulses to the superior oblique muscle of the eye
Transmits motor impulses to the heart and is the only cranial nerve to the thorax and abdomen
Sensory nerve from the face; largest cranial nerve.
transmits sensory impulses from the organs of equilibrium and hearing
Farsightedness that occurs with age is caused by ________.
loss of lens elasticity
What causes glaucoma?
aqueous humor build up which causes pressure
The vascular coat of the eyeball; deeply pigmented.
Separates external auditory canal from the middle ear.
Sensory tunic of the eye.
fluid that fills the anterior segment of the eye; provides nutrients to the lens and cornea.
the white, outer tough connective tissue covering the eyeball.
connects the middle ear with the nasopharynx.
responsible for altering the shape of the lens
the receptor organs for static equilibrium are located here.
gustatory cells are found in this structure
What causes your mouth to go dry when you get ready to give a speech in class?
Which division has long preganglionic fibers that synapse with postganglionic fibers near target tissue?
Which division has both pre- and post-ganglionic fibers that release ACh?
Which division maintains a constant "braking" action on the heart to keep heart rate down?
Which division stimulates sweating?
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