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Physiology-Jazmen Mc
| Question | Answer |
|---|---|
| If Secretion of oxytocin during childbirth operated as a negative-feedback control loop, the effect on uterine contractions? | Oxytocin would inhibit uterine contractions. |
| Events that lead to an immune response to an infection or the formation of a blood clot are examples of positive feedback. negative feedback. inhibitory feedback. intracellular control. | A |
| The impact of effector activity on sensors may be positive or negative. Therefore, homeostatic control mechanisms are categorized as: | organs that are directly influenced by physiological variables or mechanisms. |
| A membrane carrier structure attracts a solute to a binding site, changes shape, and releases the solute on the other side of the cell membrane. This describes the process of: | carrier-mediated transport. |
| Red blood cells are placed in an unknown solution. After 45 minutes, the cells are examined and determined to have decreased in size. The unknown solution is hypertonic. isotonic. hypotonic. osmotic. | A |
| Young children’s bones have a greater risk of fracturing because of incompletely ossified bone. True False | False |
| The external portion of the bone is known as Osteons Diaphysis Spongy bone Cortical bone | D |
| What best describes the axial skeletal structure? (Week 5) | Provides framework for muscles that anchor and stabilize the appendicular bones |
| The opposite of eversion is: protraction. depression. retraction. none of the above. | D |
| Which of the following is not a function of muscles? storage posture heat production movement | A |
| Of the pathogenic organisms, which of the following are the most complex? Viruses Tapeworms Bacteria Protozoa | B |