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Week 13 Physiology
weeks 7-13
| Question | Answer |
|---|---|
| What gland produces PTH? | Parathyroid gland |
| What hormones are secreted by the pancreas? | Insulin, glucagon, somatostain |
| Indicate what secretes testosterone? | Testes |
| Indicate the steroid hormones | Aldosterone, Cortisol, Estradiol, Progestrone, Testosterone, Vitamin D |
| Extrinsic Innervation of the Heart | Heartbeat is modified by the ANS. Cardiac centers in the medulla oblongata- Cardioacceleratory center innervates SA and AV nodes, heart muscle, and coronary arteries through sympathetic neurons. |
| What are the phases of action potentials for the contractile and autorhythmic cardiac cells? | unstable resting potentials-pacemaker potentials. Slow depolarizaation |
| Ventricles | The two lower chambers, which pump blood into the arteires |
| Arteries | Large vessels that carry blood away from the heart |
| Veins | Large blood vessels that carry blood toward the heart |
| Bradycardia | Abnormally slow heartbeat (usually applied to heart rates slower than 60 bpm) |