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Lisa Franke
Physiology Study Week 1 to 16
| Question | Answer |
|---|---|
| Which of the following is not one of the basic components in a feedback control loop? Group of answer choices Effector mechanism Transmitter Sensor Integrating center | Transmitter |
| Positive-feedback control systems: accelerate a change Group of answer choices have no effect on the deviation from set point. accelerate a change. ignore a change. do not exist in human systems. | accelerate a change |
| The normal reading or range of normal is called the: set point Group of answer choices sensor point. set point. effector point. integrator point. | Set point |
| If one side of a DNA molecule is CTAGGCTG, the other side would be: Group of answer choices CTAGGCTG. GATCCGAC. CUAGGCUG. GAUCCGAC. | GATCCGAC |
| Humans can synthesize 13 of 21 basic amino acids; the remaining 8, which must be included in the diet, are called: essential amino acids Group of answer choices enzymes. essential amino acids structural proteins. peptide bonds. | essential amino acids |
| Which of the following is a part of the supporting structures of the male reproductive system? Prostate Group of answer choices Scrotum Spermatic cord Prostate Seminal vesicle | Prostate |
| The foreskin in the male is also known as the: Prepuce Group of answer choices glans penis. urinary meatus. scrotum. prepuce. | prepuce |
| Which statement is the best explanation of “immune infertility”? Group of answer choices The sperm contains hyaluronidase and other hydrolytic enzymes that destroy the female ovum. Once the egg and the sperm join, an antigen-antibody reaction occurs, w | Antigen-antibody reaction in males causes destruction of sperm, resulting in infertility. |
| An open fracture is also known as a compound fracture. Group of answer choices True False | True |
| Moving a part of the body forward is: Group of answer choices protraction. elevation. inversion. depression. | protraction |
| Which structure functions to temporarily store calcium ions? Group of answer choices T-tubules Sarcolemma Sarcoplasmic reticulum Myofilaments | Sarcoplasmic reticulum |
| Kicking a football is accomplished by knee: Group of answer choices pronation. adduction. extension. flexion. | extension |
| Attempting to pick up an object too heavy to lift would result in which type of muscle contraction? Group of answer choices Isotonic Flaccid Treppe Isometric | Isometric |
| The first event to occur in muscle relaxation is that: Group of answer choices tropomyosin returns to its original position. myosin cross-bridges are prevented from binding to actin. the sarcoplasmic reticulum begins actively pumping calcium back into | the sarcoplasmic reticulum begins actively pumping calcium back into its sacs. |
| The purpose of creatine phosphate in muscle contraction is to: Group of answer choices carry oxygen. store calcium. replenish energy supply. rotate the cross-bridges. | replenish energy supply |
| Thick myofilaments extend the length of the: Group of answer choices A-band. Z-line. I-band. None of the above are correct. | A-band |
| The fastest nerve fibers in the body can conduct impulses up to approximately _____ meters per second. Group of answer choices 60 85 130 190 | 130 |
| Acetylcholine is in the same class of neurotransmitters as: Group of answer choices serotonin. histamine. dopamine. none of the above. | serotonin |
| Which of the following is a description of the principle of autonomic antagonism as it relates to the autonomic nervous system? Group of answer choices If sympathetic impulses tend to inhibit the effector, parasympathetic impulses tend to stimulate it | If sympathetic impulses tend to stimulate an effector, parasympathetic impulses tend to inhibit it |
| Which of the following is not associated with the oculomotor nerve? Group of answer choices Movement of external eye muscles Closing and opening of the eye (blink reflex) Movement of intrinsic eye muscles Proprioception of eye muscles | Closing and opening of the eye (blink reflex) |
| Damage to the _____ nerve could make the diaphragm unable to function. Group of answer choices phrenic axillary radial medial cutaneous | phrenic |
| Impulses sent over which of the following tracts could result in voluntary movement, especially of the hands, fingers, feet, and toes of the opposite side? Group of answer choices Medial reticulospinal Lateral reticulospinal Ventral corticospina | Lateral corticospinal |
| All of the following cranial nerves are involved in proprioception except the: Group of answer choices vagus. hypoglossal. accessory. abducens. | vagus |
| Which is not true of the hormone somatostatin? Group of answer choices It is produced by the delta cells of the pancreas. It inhibits the secretion of glucagon. It stimulates the secretion of insulin. Both B and C are not true of the hormone | It is produced by the delta cells of the pancreas |
| Sensory impulses ending in what part of the CNS trigger imprecise or “crude” sensation awareness? Group of answer choices Thalamus Cerebellum Brainstem Cerebral cortex | Cerebellum |
| When a small amount of one hormone allows a second hormone to have its full effect, the phenomenon is called: Group of answer choices synergism. permissiveness. antagonism. augmentation. | permissiveness |
| The production of thyroid hormone is stimulated by another hormone from the: Group of answer choices anterior pituitary. posterior pituitary. thyroid gland. parathyroid gland. | anterior pituitary |
| The last step in the nonsteroid hormone mechanism of action is: Group of answer choices joining with the G protein on the cell membrane. protein kinases activate other enzymes. adenyl cyclase is activated. cAMP is formed. | protein kinases activate other enzymes |
| One of the few hormones that functions on a positive-feedback loop is: Group of answer choices ADH. calcitonin. oxytocin. insulin. | oxytocin |
| Blood viscosity stems mainly from the red blood cells but also partly from the _____ in blood. Group of answer choices glucose molecules present lipid molecules present formed elements protein molecules present | protein molecules present |
| Factors that affect the strength of myocardial contraction are called Group of answer choices inotropic factors. chronotropic factors. ejection factors. cardiac afterload factors. | inotropic factors. |
| Erythrocytes begin their maturation sequence in red bone marrow from nucleated cells known as: Group of answer choices hemoglobin. osteons. erythroblasts. hematopoietic stem cells. | hematopoietic stem cells |
| Which are the two baroreceptors that are located near the heart? Group of answer choices coronary baroreceptors and aortic baroreceptors aortic baroreceptors and carotid baroreceptors carotid baroreceptors and venous baroreceptors aortic baro | aortic baroreceptors and carotid baroreceptors |
| Which protein interferes with the ability of viruses to cause disease? Group of answer choices natural killer cell interferon macrophage viral enzyme | interferon |
| The ingestion and destruction of microorganisms or other small particles is called Group of answer choices pinocytosis. exocytosis. apedesis. phagocytosis. | pinocytosis |
| Molecules formed by the reactions of the complement cascade assemble themselves on the enemy cell’s surface, which results in Group of answer choices cytolysis. crenation. apoptosis. hemolysis. | cytolysis |
| Adaptive immunity, part of the body’s third line of defense, is orchestrated by two different classes of a type of white blood cell called the Group of answer choices leukocyte. macrophage. lymphocyte. phagocyte. | lymphocyte |
| During their residence in the thymus, pre-T cells develop into _____, cells that proliferate as rapidly as any in the body. Group of answer choices cytotoxic T cells antigen-presenting cells thymocytes memory T cells | thymocytes |
| The movement of phagocytes from blood vessels to an inflammation site is called Group of answer choices phagocytosis. pavementing. diapedesis. apedesis. | apedesis |
| The approximate partial pressure of oxygen at standard atmospheric pressure is about _____ mm Hg. Group of answer choices 23 160 300 590 | 160 |
| The major site for the absorption of the end products of digestion is the: Group of answer choices stomach. small intestine. cecum. large intestine. | small intestine |
| Which phase(s) of gastric secretion is(are) stimulated by the sight, taste, and smell of food? Group of answer choices Intestinal phase Cephalic phase Gastric phase All of the above | Cephalic phase |
| Which step of deglutition is under voluntary control? Group of answer choices Oral stage Pharyngeal stage Esophageal stage Gastric phase | Oral stage |
| The enterogastric reflex causes: Group of answer choices secretion of digestive enzymes in the small intestine. secretion of digestive enzymes in the stomach. inhibition of gastric peristalsis. acceleration of gastric peristalsis. | inhibition of gastric peristalsis |
| Which of the following is not one of the openings that must be blocked when food moves from the pharynx into the esophagus? Group of answer choices Oropharynx Nasopharynx Larynx Mouth | Oropharynx |
| The substances absorbed into the lymph capillaries are: Group of answer choices glycerol and fatty acids. glucose and glycerol. amino acids and fatty acids. glucose and amino acids. | glycerol and fatty acids |
| The pH of the blood is maintained at approximately: Group of answer choices 7.1. 7.2. 7.3. 7.4. | 7.4 |
| If the blood pH decreases below normal, the kidney tubules secrete _____ urine. Group of answer choices fewer hydrogen ions from blood to more hydrogen ions from blood to more sodium ions into the Both A and C will occur. | more hydrogen ions from blood to |
| Which of the following would have the greatest concentration of hydrogen ions? Group of answer choices pH 2 pH 6 pH 8 pH 10 | pH 2 |
| When the adrenal cortex is stimulated to increase its secretion of aldosterone, the first thing that happens is a(n): Group of answer choices decrease in the kidney tubule reabsorption of sodium. increase in the kidney tubule reabsorption of sodium | increase in the kidney tubule reabsorption of sodium |
| Which body location is not one that is usually impacted by edema? Group of answer choices Kidneys Lungs Dependent areas of the body All of the above body areas are impacted by edema. | Kidneys |
| Which lipid is part of vitamin D? Group of answer choices Glycerol Steroids Prostaglandins Fatty acids | Steroids |
| The amino group in an amino acid is: Group of answer choices NH3+. COO–. symbolized by the letter R. SO2. | NH3+ |
| Diffusion of particles through a membrane by means of a carrier molecule is called: Group of answer choices pinocytosis. osmosis. facilitated diffusion. dialysis. | facilitated diffusion |
| Which cells form the blood-brain barrier that protects the brain from harmful substances in the blood? Group of answer choices Oligodendrocytes Neurons Astrocytes Microglia | Microglia |
| The hypodermis: Group of answer choices connects the dermis to underlying tissues. is the layer of skin in which hair is produced. connects the dermis and the epidermis. is the layer of skin in which the nails are produced. | connects the dermis to underlying tissues |
| Which of the following is not a proteoglycan found in the matrix of connective tissue? Group of answer choices Glucosamine Collagen Hyaluronic acid All of the above are proteoglycans. | Collagen |
| Of the five epidermal cell layers, the only one that can undergo mitosis is the stratum: Group of answer choices basale. lucidum. corneum. granulosum. | basale |
| Which of the following is not a characteristic of the diaphysis? Group of answer choices Provides a bulbous shape for attachment of muscle Hollow Composed of compact bone All of the above are characteristics of the diaphysis. | Provides a bulbous shape for attachment of muscle |
| Bones grow in diameter by the combined action of which two of the three bone cell types? Group of answer choices osteoblasts and osteocytes osteoblasts and osteoclasts osteoclasts and osteocytes osteocytes and osteons | osteoblasts and osteoclasts |
| Calcification of the organic bone matrix occurs when Group of answer choices complex calcium salts are deposited in the matrix. complex calcium salts are removed. calcium is replaced by phosphorus. calcium is replaced by myeloid tissue. | complex calcium salts are deposited in the matrix |
| Hematopoiesis is carried out in the: Group of answer choices osteoclasts. osteocytes. yellow bone marrow. red bone marrow. | red bone marrow |
Created by:
lafranke1