Download BIO 210 TTC Susan EXAM 3 WITH ANSWERS: Nervous System Anatomy and Physiology and more Exams Biology in PDF only on Docsity!
BIO 210 TTC Susan EXAM 3 WITH
ANSWERS
What part of the forebrain is called the "animal brain" or "primitive brain" by laymen? - .... ๐ฐ VERIFIED ANSWERS.... โโ Diencephalon Superficial gray matter arranged as many sheet-like layers of neuronal somas for conscious perceptions? - .... ๐ฐ VERIFIED ANSWERS.... โโ sensory cortex Which nervous cell type directly forms synapses with skeletal muscle cells? - .... ๐ฐ VERIFIED ANSWERS.... โโ Somatic motor neurons with somas in CNS nuclei What is the function of a choroid plexus? - .... ๐ฐ VERIFIED ANSWERS.... โโ secretes cerebrospinal fluid relaxation of a muscle in response to high tension in its tendon - .... ๐ฐ VERIFIED ANSWERS.... โโ Golgi tendon reflex flexion of joints to remove a part of the body from harmful stimuli
- .... ๐ฐ VERIFIED ANSWERS.... โโ withdrawal reflex White matter arranged as bundles of parallel tracts are what kind of structure found in the spinal cord? - .... ๐ฐ VERIFIED ANSWERS.... โโ funiculus
Fibrous sheath around bundles of nerve fibers (not in the bundles), deep in a peripheral nerve - .... ๐ฐ VERIFIED ANSWERS.... โโ Perineurium one whole bundle of nerve fibers, with areolar connective tissue and blood capillaries between the fibers - .... ๐ฐ VERIFIED ANSWERS.... โโ nerve fascicle Where does cerebrospinal fluid flow with least resistance and provides buoyant support and lubrication? - .... ๐ฐ VERIFIED ANSWERS.... โโ subdural space What fibrous layer of a bone forms the superficial side of cranial meninges (not spinal meninges)? - .... ๐ฐ VERIFIED ANSWERS.... โโ periosteum By definition, neurotransmitters are chemical signals that are secreted during _________ - .... ๐ฐ VERIFIED ANSWERS.... โโ synaptic signaling What cranial nerves contain motor pathways for eyeball movements? - .... ๐ฐ VERIFIED ANSWERS.... โโ Nerves III, IV, & VI Which cranial nerves only contain sensory pathways? - .... ๐ฐ VERIFIED ANSWERS.... โโ Nerves I, II, & VIII
Polio virus (a potential bioterrorism organism) specifically attacks somatic motor neurons, causing paralysis. Where are the cell bodies of somatic motor neurons located in the spinal cord? - .... ๐ฐ VERIFIED ANSWERS.... โโ Ventral gray horn More of which shapes indicate a greater surface area that hypothetically correlates with higher intelligence for a cerebral cortex? - .... ๐ฐ VERIFIED ANSWERS.... โโ Gyri and sulci Which PNS structure contains motor nerve fibers directly attached to spinal cord and lacks sensory fibers? - .... ๐ฐ VERIFIED ANSWERS.... โโ Ventral root (anterior root) What type of signals dominate the dorsal roots and most dorsal structures of the spinal cord? - .... ๐ฐ VERIFIED ANSWERS.... โโ Sensory and ascending Cerebrum and diencephalon - .... ๐ฐ VERIFIED ANSWERS.... โโ Forebrain Cerebellum, pons, and medulla oblongata - .... ๐ฐ VERIFIED ANSWERS.... โโ Hindbrain Which structure is mostly composed of descending tracts to gray horns that control motor functions? - .... ๐ฐ VERIFIED ANSWERS.... โโ Ventral funiculus
What nerves conduct signals to and from intercostal nerves, without going through a nerve plexus? - .... ๐ฐ VERIFIED ANSWERS.... โโ Thoracic spinal nerve (nerves T1-T11) What nerves send parasympathetic signals from medulla oblongata to thoracic & abdominopelvic viscera? - .... ๐ฐ VERIFIED ANSWERS.... โโ Vagus nerve (left and right nerves X) Which are purely sensory nerves? - .... ๐ฐ VERIFIED ANSWERS.... โโ Olfactory nerves (nerves I) Which are mixed nerves that conduct signals for taste sensations? - .... ๐ฐ VERIFIED ANSWERS.... โโ Facial and glossopharyngeal nerves (nerves VII & IX) Which of the following are found in or on the medulla oblongata? A. Somatic motor nuclei for reflexes of appendicular skeletal muscles of the lower body B. Crossed extensor pathwats from one side of the spinal cord to the other C. Tracts connecting to spinal nerves D. All of these E. None of these - .... ๐ฐ VERIFIED ANSWERS.... โโ None of these Which part of the corpora quadrigemina contains visual nuclei that initiate startle reflexes? - .... ๐ฐ VERIFIED ANSWERS.... โโ Superior colliculus
What white matter contains nerve fibers from left eye crossing to right side of brain and vice versa? - .... ๐ฐ VERIFIED ANSWERS.... โโ optic chiasma Ascending and descending tracts crossing left to right and vice versa in medulla oblongata is called what? - .... ๐ฐ VERIFIED ANSWERS.... โโ decussation what does the hypothalamus secrete to start the efferent signaling for systemic energy metabolism? - .... ๐ฐ VERIFIED ANSWERS.... โโ thyrotropin releasing hormone (thyroid stimulating hormone release hormone) When anterior pituitary gland gets the hypothalamic signal for systemic energy metabolism, it secretes what hormone? - .... ๐ฐ VERIFIED ANSWERS.... โโ Thyrotropin (thyroid stimulating hormone) During puberty and adolescence, the adrenal cortex secretes what hormone that turns on axillary & pubic hair follicles, apocrine sweat glands, and female libido (sex drive)? - .... ๐ฐ VERIFIED ANSWERS.... โโ Androgen (androgyn) What hormone does adrenal medulla secrete to signal alarm phase stress responses? - .... ๐ฐ VERIFIED ANSWERS.... โโ adrenaline (epinephrine)
personality, complex problem-solving, creativity, somatic motor memories, and final voluntary decisions - .... ๐ฐ VERIFIED ANSWERS.... โโ frontal lobe conscious sense of smell and hearing - .... ๐ฐ VERIFIED ANSWERS.... โโ temporal lobe What cells line lumens of the lateral ventricles, third ventricle, fourth ventricles, and cerebral aqueduct? - .... ๐ฐ VERIFIED ANSWERS.... โโ Ependymal cells bundle of fascicles in the PNS (peripheral nervous system) connected to brain - .... ๐ฐ VERIFIED ANSWERS.... โโ cranial nerve control center of gray matter deep in the CNS (central nervous system) - .... ๐ฐ VERIFIED ANSWERS.... โโ Nucleus cluster of neuron cell bodies in the PNS, specialized for bringing signals from receptors to the CNS - .... ๐ฐ VERIFIED ANSWERS.... โโ sensory ganglion hindbrain control centers for subconscious fine-tuning skeletal muscle coordination - .... ๐ฐ VERIFIED ANSWERS.... โโ cerebellum filters sensory information in the diencephalon before signals reach the cerebral cortex - .... ๐ฐ VERIFIED ANSWERS.... โโ thalamus
higher respiratory centers that coordinate lower rhythmicity centers to adjust breathing rate & depth - .... ๐ฐ VERIFIED ANSWERS.... โโ pons respiratory rhythmicity reflex centers and cardiovascular reflex centers - .... ๐ฐ VERIFIED ANSWERS.... โโ medulla oblongata nuclei for startle reflexes initiated by auditory and visual stimuli - .... ๐ฐ VERIFIED ANSWERS.... โโ midbrain layer with folds or septa that contain the largest veins (venous sinuses) in the cranial meninges - .... ๐ฐ VERIFIED ANSWERS.... โโ dura mater fibrous support struts in the cerebrospinal fluid of the subarachnoid space - .... ๐ฐ VERIFIED ANSWERS.... โโ arachnoid trabeculae loose material just superficial to the spinal meninges and deep to spinal skeletal organs - .... ๐ฐ VERIFIED ANSWERS.... โโ epidural fascia Which of the following CANNOT do signal integration in the hypothalamus? - .... ๐ฐ VERIFIED ANSWERS.... โโ optic chiasma
Which part of frontal lobe contains gray matter for final conscious decisions to take voluntary actions? - .... ๐ฐ VERIFIED ANSWERS.... โโ primary motor cortex Which part blocks excessive contraction and flips somatic reflexes for walking and running? - .... ๐ฐ VERIFIED ANSWERS.... โโ cerebral basal nuclei Which structure contains only association tracts carrying signals left-to-right and right-to-left in cerebrum? - .... ๐ฐ VERIFIED ANSWERS.... โโ corpus callosum Which statement is true for a parasympathetic motor unit? - .... ๐ฐ VERIFIED ANSWERS.... โโ Preganglionic nerve fibers are longer than postganglionic nerve fibers. What chain of motor ganglia coordinates thoracolumbar emergency responses? - .... ๐ฐ VERIFIED ANSWERS.... โโ sympathetic trunk What neurotransmitter is secreted by all preganglionic neurons, parasympathetic ganglionic neurons, and somatic motor neurons? - .... ๐ฐ VERIFIED ANSWERS.... โโ acetylcholine Which nervous division only carries efferent signals directly to cardiac muscle, smooth muscles, or glands? - .... ๐ฐ VERIFIED ANSWERS.... โโ autonomic motor nervous system
What inflammatory paracrine lipid is a signal from damaged cells to mast cells (not secreted by mast cells) - .... ๐ฐ VERIFIED ANSWERS.... โโ prostaglandin Which structure secretes melatonin to prepare the body for sleep? - .... ๐ฐ VERIFIED ANSWERS.... โโ Pineal gland (pineal body) same chemical is classified as a neurotransmitter when secreted by What chemical is classified as a hormone when secreted by adrenal medullary endocrine neurons, but the sympathetic ganglionic motor neurons? - .... ๐ฐ VERIFIED ANSWERS.... โโ norepinephrine If the pituitary gland secretes TSH, then follicle cells secrete which hormone to increase energy metabolism? - .... ๐ฐ VERIFIED ANSWERS.... โโ thyroxine What is the function of the antidiuretic hormone (ADH) produced by hypothalamic neuroendocrine cells? - .... ๐ฐ VERIFIED ANSWERS.... โโ efferent signal to retain H20 in the body What is a synonym for the neurohypophysis that secretes oxytocin and ADH? - .... ๐ฐ VERIFIED ANSWERS.... โโ anterior pituitary gland hormone made from vitamin D by an anabolic pathway through liver and eventually secreted by kidney - .... ๐ฐ VERIFIED ANSWERS.... โโ calcitriol
mineralocorticoid from adrenal gland telling effectors to increase Na* & decrease K* in extracellular fluid - .... ๐ฐ VERIFIED ANSWERS.... โโ aldosterone signal from pancreatic islet alpha cells, telling target cells to increase blood glucose that is too low - .... ๐ฐ VERIFIED ANSWERS.... โโ glucagon too much IGF secretion in childhood (usually because of excessive signaling from a pituitary - .... ๐ฐ VERIFIED ANSWERS.... โโ giantism too little normal insulin secretion (inherited) - .... ๐ฐ VERIFIED ANSWERS.... โโ type 1 diabetes mellitus too much growth hormone secretion started in adulthood, causing thickened extremities & joint problems - .... ๐ฐ VERIFIED ANSWERS.... โโ acromegaly hyperthyroidism caused by antibodies binding to TSH receptors - .... ๐ฐ VERIFIED ANSWERS.... โโ Grave's disease an efferent paracrine inflammatory signal secreted by mast cells
- .... ๐ฐ VERIFIED ANSWERS.... โโ histamine
