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Anatomy Week 6-12
| Question | Answer |
|---|---|
| Nerves that contain mostly afferent fibers are called _____ nerves. a. sensory b. motor c. mixed d. Schwann | a. sensory |
| The autonomic nervous system does not stimulate: a. skeletal muscle b. smooth muscle c. glands d. cardiac muscle | a. skeletal muscles |
| Describe the pathway down a neuron for an impulse conduction. | Dendrite to cell body to axon |
| What are the three layers of neurons that compose the sensory retina? | Photoreceptor cells, bipolar cells, and ganglion cells |
| Name 2 hormones secreted by each portion of the pituitary gland: adenohypophysis and neurohypophysis. | Adenohypophysis: Growth hormone, prolactin Neurohypophysis: ADH, oxytocin |
| Which vitamin is regulated by the secretions of parathyroid hormone? | Vitamin D |
| What are the three layers of tissue that make up the walls of the heart? | Epicardium, myocardium, and endocardium |
| Briefly describe the flow of blood through the heart and lungs. | Venous blood enters RA of heart, to RV, out to lungs to oxygenate, back to LA then LV and arterial blood is sent back towards the body and its extremities. |
| Name the 6 types of sensory receptors. | Mechanoreceptors (sense pressure), chemoreceptors (taste/smell), thermoreceptors (temperature), nociceptors (pain), photoreceptors (only in eye, light), osmoreceptors (in hypothalamus, osmotic pressure in body fluids) |
| During inspiration, as the size of the thorax increases, the intrapleural pressure and alveolar pressure _____________(Boyle's law). | decreases |
| Describe Charles' law (gas law). | Volume of a gas is directly proportional to the temperature when pressure if held at a constant. |
| How does the protein concentration in lymph compare to blood plasma? | Lymph has a lower percentage of protein than blood plasma. |
| Where does lymph reenter the blood circulation? | Lymph flows through progressively larger lymphatic vessels to reenter blood at the junction of the internal jugular and subclavian veins. |