click below
click below
Normal Size Small Size show me how
Wk13 Farida Wali
Wk 13 Assignment 2 SCI220 Anatomy
Question | Answer |
---|---|
What is myelin sheath? | A single process extending from the axon hillock, sometimes covered by a fatty layer called a myelin sheath |
What are bundles of neurofilaments? | Microtubules and microfilaments, as well as neurofibrils. |
One principle of hormone action is antagonism. What is antagonism? | One hormone produces the opposite effects of another hormone; used to “fine-tune” the activity of target cells with great accuracy. |
What are endocrine glands? | Endocrine glands are “ductless glands”; many are made of glandular epithelium whose cells manufacture and secrete hormones; a few endocrine glands are made of neurosecretory tissue. |
What are hematopoiesis? | Hematopoiesis is the formation of new blood cells. |
What are the layers of the walls of the heart? | Epicardium, Myocardium, and Endocardium |
What is angiogenesis? | Formation of new blood vessels. |
What is blood viscosity? | The thickness of blood as a fluid. |
What are lymphatic capillaries? | Microscopic blind-end vessels where lymphatic vessels originate; wall consists of a single layer of flattened endothelial cells; networks branch and anastomose freely. |
What are the divisions of the stomach? | 1. Cardia—collarlike region at junction with esophagus 2. Fundus—enlarged portion to the left and above the opening of the esophagus into the stomach 3. Body—central portion of the stomach 4. Pylorus—lower part of the stomach |