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A&P Final
Anatomy Finall
Question | Answer |
---|---|
What are ciliated CNS neuroglia that play an active role in moving the cerebrospinal fluid called? | Ependymal cells |
Bipolar neurons are commonly __. | Found in the retina of the eye. |
Which of the following is an excitatory neurotransmitter secreted by motor neurons innervating skeletal muscle? | Acetylcholine |
The part of a neuron that conducts impulses away from the cell body is called a (an) ___. | Axon |
Which ion channel opens in response to a change in membrane potential and participates in the generation and conduction of action potentials? | Voltage gated channel.g |
What is the role of enzyme acetylcholinesterase? | Destroy the ACh a brief period after its release by the axon endings. |
The term central nervous system refers to the ___. | Brain and spinal cord. |
The substance released at axon terminals to propagate a nervous impulse is called a(n) ___. | Neurotransmitter. |
Schwann cells are functionally similar in PNS to ___ cells in CNS. | Oligodendrocytes. |
Which of the following is not true of graded potentials? | The increase amplitude as they move away from the stimulus point. |
The arbor vitae refers to ___. | cerebellar white matter. |
The primary auditory cortex is located in the ___. | Temporal lobe. |
The subarachnoid space lies between what two layers of meninges? | Arachnoid and pia |
Cell bodies of the sensory neurons of the spinal nerves are located in ___. | The dorsal root ganglia of the spinal cord. |
Which of the following generalizations does not describe the cerebral cortex? | The hemispheres are exactly equal in function. |
Which of these would you not find in cerebral cortex? | Fiber tracts |
An individual accidentally transcended the spinal cord between T1 and L1. This would result in ___. | Paraplegia |
Broca's area ___. | is considered a motor speech area |
The blood-brain barrier is effective against ___. | Metabolic waste such as urea. |
Which of the following would you find in normal cerebrospinal fluid? | Red blood cells. |
All of the following are structures of the limbic system except the ___. | Caudate nucleus |
Which of the following nerves does not arise from the brachial plexus? | Pharnic |
Which of the following is not a way that sensory receptors are classified? | Sensitivity to stimulus |
Spinal nerves exiting the cord from the level of L4 to S4 form the ___. | Sacral Plexus |
Nerves that carry impulses away from the CNS only are ___. | Afferent nerves |
After atonal injury, regeneration in peripheral nerves is guided by ___. | Schwann cells. |
Regeneration within the CNS___. | Is prevented due to growth-inhibiting proteins of oligodendrocytes. |
The sciatic nerve is combination of which two nerves? | common fibular and tibial |
Which of the following does not describe the ANS? | A system of motor neurons that innervates all muscle cells |
Preparing the body for "flight or fight" response is the role of the ___. | Sympathetic nervous system. |
The somatic and autonomic nervous systems differ in all of the following except ___. | All of the following are neurotransmitters. |
The "resting and digesting" division of the autonomic nervous system is the ___. | Parasympathetic division |
Which of the following is not a result of parasympathetic stimulation? | Dilation of the pupils |
What is the main function of cone cells in the eye? | Color vision |
Receptors for hearing are located in the ___. | Cochlea |
The receptor for static equilibrium is the ___. | Macula |
Which of the following structures is not part of the external ear? | Tympanic membrane |
What prevents the eyelids from sticking together when the eyes close? | Tarsal glad secretion |
The blind spot of the eye is where ___. | The optic nerve leaves the eye. |
Which of the following could not be seen as one looks into the eye with an ophthalmoscope? | optic chiasma |
The cells in the retina in which action potentials are generated are the__ | Ganglion cells |
The eye muscle that elevates and turns the eye laterally is the ___ | Inferior Oblique |
Light passes through the following structures in what order? | Cornea, aqueous humor, lens, vitreous humor |
Which term describes the backside of the body the best? | Dorsal |
What is the main general purpose of negative feedback? | To maintain homeostasis |
The posterior knee area is called __ | popliteal |
The blast cell for blood production is the___ | hemocytoblast |
Bending your head back until it hurts is an example of ___. | hyperextention |