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ANP1040 Exam 4

Correctly label the following anatomical features of a neuron. Node of ranvier, Myelin sheath, Nucleus, Internode, Schwann cell, Synaptic knobs, Axon hillock, Soma, Terminal arborization, Dendrites, Axon, Axon collateral
Correctly label the structures, areas, and concentrations associated with a cell's electrical charge difference across its membrane. Sodium channel, Large concentration of Potassium, ICF, EFC, Phosphates/Sulfates/Proteins, Potassium channel, Large concentration of Sodium
___ division carries signals to the smooth muscle in the large intestine. -Visceral sensory -Visceral motor -Somatic motor -Afferent -Somatic sensory Visceral motor
The ___ division tends to prepare the body for action. -parasympathetic -sympathetic -motor afferent -sensory afferent -somatic motor sympathetic
The autonomic nervous system is also called the -visceral sensory division. -central nervous system. -visceral motor division. -somatic motor division. -somatic sensory division. visceral motor division
____ are the primary site for receiving signals from other neurons. -Axon collaterals -Somas -Synaptic knobs -Axons -Dendrites Dendrites
___ form myelin in the spinal cord. -Schwann cells -Oligodendrocytes -Microglia -Astrocytes -Satellite cells Oligodendrocytes
Most of the myelin sheath is composed of -lipids. -polysaccharides. -glycoproteins. -proteins. -carbohydrates. lipids
Opening Na+ gates typically leads to -depolarization of the plasma membrane -hyperpol. of the plasma memb. -drifting of plasma memb. voltage toward a more (-) value -repol. of the plasma memb. -plasma memb. voltage returning to the resting memb. pote depolarization of the plasma membrane
Diagram of action potential.
Typical neurotransmitters characteristics except they -synthesized by presynaptic neuron -released response to stimulation -bind specific receptors on postsynaptic cell -alter function postsynaptic cell -released in bloodstream before postsynaptic ce they are released into the bloodstream before reaching the postsynaptic cell
Inhibitory postsynaptic potentials (IPSPs) are associated with: -repolarization of the cell membrane -no change of the threshold -hyperpol. of cell membrane -depol. of cell membrane -no change of the cell membrane potential hyperpolarization of the cell membrane
Correctly label the following anatomical features of the spinal cord. Posterior root ganglion, Spinal cord, Spinous process of vertebra, Epidural space, Pia mater, Dura mater (dural sheath), Arachnoid mater, Spinal nerve, Vertebral body, Subarachnoid space
Correctly label the following anatomical features of a nerve. Posterior root, Anterior root, Posterior root ganglion, Spinal nerve, Perineum, Myelin, Epineuriun, Endoneurium, Myelinated nerve fiber, Unmyelinated nerve fiber
Which of the following structures is the richest in lipid content? -arachnoid mater -pia mater -white matter -gray matter -dura mater white matter
A ganglion is a -cluster of neurosomas in the PNS. -bundle of axons in the CNS. -cluster of neurosomas in the CNS. -cluster of dendrites in either the CNS or the PNS. -bundle of axons in the PNS. cluster of neurosomas in the PNS
The cervical plexus gives origin to the ___ nerve(s). -radial -sciatic -musculocutaneous -phrenic -oculomotor phrenic
Which of the following nerves originates in the lumbosacral plexus? -obturator -sciatic -ilioinguinal -axillary -phrenic sciatic
A ___ is a cordlike organ composed of numerous ___. -nerve; axons -nerve; neurosomas -nerve fiber; axons -nerve fiber; neurosomas -nerve fiber; nerves nerve; axons
Describes the order of a somatic reflex. somatic receptor → afferent nerve fiber → interneuron → efferent nerve fiber → smooth muscle
The quickest reflex arcs involve only two neurons, thus forming __ reflex arcs. -monosynaptic -autonomic -ipsilateral -polysynaptic -contralateral monosynaptic
Correctly label the following anatomical features of the surface of the brain. Central sulcus, Longitudinal fissue, Occipital lobe, Parietal lobe, Frontal lobe, Cerebral hemispheres
Correctly label the following functional regions of the cerebral cortex. Prefrontal cortex, Wernicke area, Motor association area, Primary somesthetic cortex, Primary motor cortex, Somesthetic association area, Broca area, Visual association area, Primary visual cortex
Correctly label the following functional regions of the cerebral cortex. Postcentral gyrus, Lateral sulcus, Temporal lobe, Precentral gyrus, Central sulcus, Insula, Parietal lobe, Frontal lobe, Occipital lobe
Correctly label the cranial nerves. Optic nerve, Glossopharygeal, Oculomotor nerve, Accessory nerve, Abducens nerve, Hypoglossal nerve, Vagus nerve, Vestibulocochlear nerve, Olfactory tract, Facial nerve
Know location of major anatomical landmarks of the medial surface of the brain. -midbrain -hypothalamus -medulla oblongata -pons -cerebellum
From superficial to deep, the meninges occur in this order: -pia mater, dura mater, arachnoid. -dura mater, pia mater, arachnoid. -arachnoid, pia mater, dura mater. -dura mater, arachnoid, pia mater. -pia mater, arachnoid, dura mater. dura mater, arachnoid, pia mater
The ___ is the largest part of the hindbrain. -hypothalamus -cerebellum -brainstem -cerebrum -pons cerebellum
Loss of equilibrium and motor coordination would most likely be related to a lesion in the -limbic system. -pituitary gland. -cerebellum. -pons. -medulla oblongata. cerebellum
Sex drive, body temperature, and food and water intake are regulated by -the hypothalamus. -the thalamus. -the pineal gland. -the pituitary gland. -the limbic system. the hypothalamus
Planning, motivation, and social judgment are functions of the brain associated with -the frontal lobe. -the occipital lobe. -the insula. -the temporal lobe. -the parietal lobe. the frontal lobe
Occipital lobe is -primary site receiving & interpreting signals from general senses -likely play a role in understanding spoken language -principal visual ctr of brain -chiefly concerned w/mood, memory & emotions -concerned w/voluntary motor functio the principal visual center of the brain
After stroke, pt c/o lack of sensitivity in R hand. Stroke likely affected: -postcentral gyrus in L parietal lobe. -postcentral gyrus in R temporal l. -postcentral gyrus in L frontal l. -precentral gyrus in L frontal l. -precentral gyrus in R frontal postcentral gyrus in the left parietal lobe
The ___ is not a motor cranial nerve. -accessory nerve (XI) -vestibulocochlear nerve (VIII) -hypoglossal nerve (XII) -abducens nerve (VI) -trochlear nerve (IV) vestibulocochlear nerve (VIII)
This is the largest of the cranial nerves and the most important sensory nerve of the face. -the trigeminal nerve (V) -the facial nerve (VII) -the accessory nerve (XI) -the abducens nerve (VI) -the hypoglossal nerve (XII) the trigeminal nerve (V)
This nerve innervates most of the viscera in the thoracic and abdominopelvic cavities. -the hypoglossal nerve (XII) -the vagus nerve (X) -the accessory nerve (XI) -the abducens nerve (VI) -the trochlear nerve (IV) the vagus nerve (X)
The digestive tract has a nervous system of its own called the -sympathetic nervous system. -peripheral nervous system. -enteric nervous system. -parasympathetic nervous system. -central nervous system. enteric nervous system
Parasympathetic tone: -holds resting heart rate (HR) below its intrinsic rate -does not affect HR -accelerates the resting HR above its intrinsic rate -might increase or decrease HR depending on the situation -affects HR only after myocardial infarct holds the resting heart rate below its intrinsic rate
Preganglionic fibers run from: -gray matter to posterior root ganglia. -posterior root ganglia to autonomic ganglia. -gray matter to autonomic ganglia. -posterior root ganglia to gray matter. -autonomic ganglia to visceral effectors. gray matter to autonomic ganglia
All features of sympathetic div. except it -originates in thoracolumbar region of spinal cord -has long postganglionic fibers -has long preganglionic fibers -has extensive neural divergence & relative widespread effect -ganglia adjacent to spinal col it has long preganglionic fibers
All characteristics of parasympathetic div. except -originates in the craniosacral regions of CNS -the terminal ganglia are very close to or w/i their target organs -has short postganglionic fiber -its effects are local -has short preganglionic fibe it has short preganglionic fibers
The parasympathetic division arises from the ___ region(s) of the spinal cord. -brain, thoracic, and lumbar -brain, sacral, and coccygeal -brain, lumbar, sacral, and coccygeal -sacral and lumbar -brain and sacral brain and sacral
Correctly label the following anatomical features of the eye. Vitreous body, Optic disc (blind spot), Pupil, Optic nerve, Lens, Sclera, Cilliary body, Retina, Iris, Choroid, Cornea, Suspensory ligaments
What structure is visible to the naked eye? -taste hair -lingual papilla -taste (gustatory) cell -taste bud -taste pore lingual papilla
Which structures belongs to the inner ear?
This figure shows the internal anatomy of the ear. What does "7" represent? -the stapes -the tympanic cavity -the semicircular duct -the vestibule -the cochlea the cochlea
Which structure allows upper respiratory infections to spread from the throat to the tympanic cavity? -the cochlear duct -the auditory canal -the oval window -the auditory (eustachian) tube -the tympanic cavity the auditory (eustachian) tube
A 100 dB sound (loud) of 150 Hz (low pitch) would cause: -basilar membrane to vibrate slightly near its distal end -basilar membrane to vibrate vigorously near distal end -basilar membrane to vibrate slightly near proximal end basilar membrane to vibrate vigorously near its distal end.
When you spin while sitting in a swivel chair with your eyes closed, you can sense this movement by means of your -spiral organ (organ of Corti). -utricle. -saccule. -semicircular ducts. -cochlea. semicircular ducts
___ are responsible for photopic (day) vision as well as trichromatic (color) vision. -Pigment cells -Rods -Ganglion cells -Cones -Bipolar cells Cones
Reason cones exhibit less neuronal convergence than rods is ______________________________. photopic (day) vision has higher resolution than scotopic (night) vision
Created by: shaston001