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Physiology Stack
1st Study Stack
| Question | Answer |
|---|---|
| If the secretion of oxytocin during childbirth operated as a negative-feedback control loop, what effect would it have on uterine contractions? | Oxytocin would inhibit uterine contractions |
| All of the following substances are organic except: | electrolytes |
| A structural lipid found in the cell membrane is a: | triglyceride and steroid |
| The physical process by which water and solute move through a membrane when a hydrostatic pressure gradient exists across the membrane is the process of: | filtration |
| Which is true about the sodium and potassium pump? | Three sodium ions are taken out of the cell. |
| Diffusion requires: | a concentration gradient. |
| Which of the following statements is true? | The site of transcription is within the nucleus, whereas the site of translation is in the cytoplasm. |
| Which of the following is not a function of adipose tissue? | Defends the body from microbes and injurious substances |
| Which of the following is not a proteoglycan found in the matrix of connective tissue? | Collagen |
| Which type of tissue has the greatest capacity to regenerate? | epithelial |
| Which of the following is not a characteristic of skeletal muscles? | Having one nucleus per cell |
| The hypodermis: | connects the dermis to underlying tissues. |
| Which cells electrically insulate axons to increase the speed of conduction? | Oligodendrocytes and Schwann cells |
| One similarity between the structures of the foot and hand is the equivalent degrees of movement of both the thumb and the big toe. | False |
| When the knee is flexed, the patella can be easily distinguished. | False |
| The cell organelles that synthesize organic matrix substances in bone formation are: | endoplasmic reticulum and Golgi apparatus. |
| In the epiphyseal plate, the zone of hypertrophy is in the _____ layer. | third |
| Which of the following may cause skeletal variations? | Inadequate supply of calcium and vitamin D Mechanical stress Age |
| Which of the following statements is incorrect about motor units? | Some motor neurons stimulate only a few dozen muscle fibers. Some motor neurons stimulate a few thousand muscle fibers. The more muscle fibers stimulated by a motor neuron, the more precise the movements of that muscle can be. |
| The strength of a muscle contraction is influenced by the: | amount of load. initial length of muscle fibers. recruitment of motor units. |
| A contraction in which the tension within the muscle remains the same but the length changes is called a(n) _____ contraction. | isotonic |
| All of the following are noninflammatory joint disorders except: | juvenile rheumatoid arthritis. |
Created by:
MariahDavila
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