Biology
10th Edition
ISBN: 9780073383071
Author: Raven
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Textbook Question
Chapter 43, Problem 6A
As you sit quietly reading this sentence, the part of the nervous system that is most active is the
a. somatic nervous system.
b. sympathetic nervous system.
c. parasympathetic nervous system.
d. None of the choices is correct.
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Which of the following is true concerning the role of Calcium in the contraction ofmuscle-cells?A. skeletal muscle cells require an extracellular inward-Calcium-current to stimulate theburst of Calcium from the sarcoplasmic reticulum.B. smooth muscle cells require an extracellular inward-Calcium-current to stimulate theburst of Calcium from the sarcoplasmic reticulum.C. cardiac muscle cells require an extracellular inward-Calcium-current to stimulate theburst of Calcium from intracellular stored-Calcium-organelles.D. No type of muscle cell requires an extracellular inward-Calcium current for normalcontractile-function
Post-synaptic receptors located on the membrane of skeletal muscle cells allowthe muscle cells/fibers to respond to the neural-stimulus. What is the name of thereceptors located on the post-synaptic membrane of the muscle cells (you can’t findthe answer in the textbook; you have to do some research)?A. beta receptorsB. alpha receptorsC. muscarinic receptorsD. nicotinic receptors
The neurotransmitter released by the motor neuron and responsible for electricallyexciting the muscle fiber is, _________________.A. DopamineB. EpinephrineC. DystrophinD. Acetylcholine
Chapter 43 Solutions
Biology
Ch. 43 - Which of the following best describes the...Ch. 43 - The ____ cannot be controlled by conscious...Ch. 43 - Prob. 3UCh. 43 - Inhibitory neurotransmitters a. hyperpolarize...Ch. 43 - White matter is ______, and gray matter is...Ch. 43 - During an action potential a. the rising phase is...Ch. 43 - Prob. 7UCh. 43 - Imagine that you are doing an experiment on the...Ch. 43 - The Na+/K+ ATPase pump is a. not required for...Ch. 43 - Prob. 3A
Ch. 43 - The following is a list of the components of a...Ch. 43 - Prob. 5ACh. 43 - As you sit quietly reading this sentence, the part...Ch. 43 - G proteincoupled receptors are involved in the...Ch. 43 - Tetraethylammonium (TEA) is a drug that blocks...Ch. 43 - Describe the status of the Na+ and K+ channels at...Ch. 43 - Describe the steps required to produce an...Ch. 43 - Prob. 4S
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- Which of the following is true concerning the role of Calcium in the contraction ofmuscle-cells?A. skeletal muscle cells require a burst of calcium from the sarcoplasmic reticulum.B. smooth muscle cells require a burst of calcium from the sarcoplasmic reticulum.C. cardiac muscle cells require a burst of calcium from the sarcoplasmic reticulum.D. All of the above are correctarrow_forwardThe structure (a specialized synapse) that allows neurons to control our skeletalmusclefibers is called the:A. sarcolemmaB. neuromuscular junctionC. sarcoplasmic reticulumD. cross-bridge axiomarrow_forwardA muscle contraction occurs when the “heads” on the _________________________bind to the “binding-sties” on the ___________________________.A. actin filaments : myosin filamentsB. thin filaments : thick filamentsC. myosin filaments : actin filamentsD. troponin filaments : tropomyosin filamentsarrow_forward
- Relative to a skeletal muscle contraction, a protein called __________________keeps the contractile proteins from interacting and forming cross-bridges(while the cell is in a relaxed-state).A. actinB. myosinC. dystrophinD. tropomyosinarrow_forwardWhich of the following bones possesses the supraorbital foramen?a. frontalb. occipitalc. temporald. axisarrow_forwardWhich of the following bones possesses the styloid process?a. frontalb. occipitalc. temporald. axisarrow_forward
- Which of the following bones possesses the external auditory meatus?a. frontalb. occipitalc. temporald. axisarrow_forwardWhich of the following is not one of the bones of the cranium?A. frontalB. occipitalC. temporalD. axisarrow_forwardThe deltoid tuberosity is found on the:A. humerusB. ulnaC. radiusD. carpalsarrow_forward
- The clavicles articulate with the sternum and _______________.A. manubriumB. xyphoid processC. acromian processD. coracoid processarrow_forwardHow many thoracic vertebra exist in the spinal cord?a. 6b. 14c. 12d. 24arrow_forwardThe most inferior region of the vertebral column is the:a. sacrumb. coccyxc. manubriumd. pubisarrow_forward
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