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a and p lab
nervous system
| Question | Answer |
|---|---|
| a general term for the ridges on the surface of the brain ____________ or _______ | convolutions; gyri |
| the region of brainstem responsible for regulating respiratory rate and depth is the ______ | pons |
| the spinal accessory nerve exits the skull through the __________ ________ | jugular foramen |
| the ______________, a mass of tissue posterior to the brain stem, is responsible for integrating sensory information concerning body position and coorditnation of muscle activities. the white matter of this region is called the _________ ________ | cerebellum;arbor vitae |
| a prominent dression called the ___________ sulcus seperates the frontal and parietal lobes of the brain while another prominent depression called the _________ sulcus seperates the temporal lobe from the and parietal lobes. | centeral;lateral |
| the lobe of cerebrum responsible for vision and association areas involved with imaging is the _____________ lobe | occipital |
| the ________ __________ connects the hemispheres of brain and allows neural signals to be transmitted from one hemisphere to the other | corpus callosum |
| the ___________ branch of the _____________ nerve controls the masseter and temporalis muscles, both of which elevate the mandible | mandibular; trigeminal |
| the thalamus, hypothalamus, optic tract, and pineal gland are located in an area of the brain known as the _____________ | diencephalon |
| the __________ fissure seperates the hemispheres of the brain. the ______ __________ of the menigies fold into this fissure, partitioning the cerebrum into left and right hemispheres. | longitudinal; falx cerebri |
| the lobe of the cerebrum that contains the primary motor areas and association areas involved in higher thought processing (concentration, problem solving) is the ____________ lobe | frontal |
| the ___________ is the part of the diencephalon that plays a particularly important role in the maintenance of homeostasis by controlling, among other things, body temperature and the secretion of many hormones | hypothalamus |
| the facial nerve (cranial nerve VII) exits the skull through the _____________ ___________ | stylomastoid foramen |
| the ___________ lobe of the cerebrum is responsible for the sensations of touch and temperature and contains association areas involved with speech and language | parietal |
| the region of the brainstem that contains reflex centers that help to maintain posture is the ____________ | midbrain |
| the __________ ________ is attached to the diencephalon by means of the infundibulum. this gland secretes hormones that are involved in such things as growth, milk production, control of thyroid function, and reproduction. | pituitary gland |
| the ______________ fissure seperates the cerebrum from the cerebellum. the __________ ____________ of the meninges fold into this fissure, forming a partition between the cerebrum and the cerebellum. | transverse; tentorium cerebelli |
| the mandibular branch of the trigeminal nerve exits the skull through the ________ _______, enters the mandible through the ____________ foramen on the medial side of the ramus and, then exits the mandible through the ___________ foramen | foramen ovale, mandibular, mental |
| the lobe of the cerebrum responsible for hearing and contains association areas involved with the interpretation of sensory information is the ______________ lobe | temporal |
| the region of the brainstem that contains the cardiac, vasomotor, and respiratory control centers is the ___________ ___________ | medulla oblongata |
| the ____________ serves as a relay station for ascending neural impulses | thalamus |
| the _______ nerve controls all muscles of facial expression | facial |
| if a person suffers a spinal cord injury at the C6 level, that person will still be able to have some movement of their shoulders because the sternocleidomastoid, trazpezius, and serratus anterior muscles are controlled by the _________ ________ ________ | spinal accessory nerve (cranial nerve XI) |
| the spinal accessory nerve (cranial nerve XI) exits the skull through the _________ _________ | jugular foramen |
| the partiton formed by meninges that seperates the hemispheres of the cerebellum is called the ________ _________ | falx cerebelli |
| what type of neural fibers would be found in the dorsal root? | sensory |
| what type of neural fibers would be found in the ventral root? | motor |
| what type of neurons would be found in the gray matter | interneurons |
| where are the major ascending and descending neural tracts located? | white matter |
| list the five major components of a reflex arc in order. | 1. receptor 2. sensory (afferent) neuron 3. central nervous system 4. motor (efferent) neuron 5. effector (muscle or gland) |
| distinguish between a reflex and a reflex arc | a reflex is an autonamic behavior a reflex arc is a physical structure that, when stimulated, leads to the behavior |
| the patellar reflex is an example of a monosynaptic spinal reflex. explain | there is no interneuron. the sensory neuron communicates directly with motor neuron |
| which muscle group is involved in the patellar tendon reflex? | quadriceps |
| which muscles are involved in the calcaneal (achilles) tendon reflex? | gastrocnemius and soleus |
| is the subject's reflex time different for the 2 reflexes? If so, why does this difference exist? | reflex arc is longer for calcaneal tendon reflex than for patellar tendon reflex |
| does the subject's time change with different stimulus strengths? why does it or doesn't it change? | No. once threshold is acheived the neural activities (action potential propigation, synaptic transmission) proceed at the same rate. |
Created by:
allijeli
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