A force that attracts fluid into the capillary from the tissue spaces is
A. blood colloid osmotic pressure.
B. blood pressure.
C. negative interstitial pressure.
D. active transport.
E. venous pressure.
Answer: A
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The inferior bony nasal septum is formed by the ____________________.
Fill in the blank(s) with the appropriate word(s).
Answer the following questions true (T) or false (F)
1. Neuroendocrine glands, such as the adrenal medulla, consist of nervous tissue yet secrete chemicals known as neurohormones. 2. In the second-messenger system, the first messenger initiates a cellular change in activity by binding a receptor in the plasma membrane. 3. Endocrine cells that release hormones in response to the concentration of a certain ion or molecule in the blood or extracellular fluids are stimulated by humoral stimuli.
What are the differences between gross anatomy and microscopic anatomy?
A) Gross anatomy involves the study of tissues; microscopic anatomy involves the study of cells. B) Gross anatomy involves the study of cells; microscopic anatomy involves the study of tissues. C) Gross anatomy involves the study of body structures that can be seen with the unaided eye; microscopic anatomy is the study of body structures that cannot be seen without magnification. D) Gross anatomy is the study of body structures that cannot be seen without magnification; microscopic anatomy is the study of body structures that can be seen with the unaided eye. E) Gross anatomy is the study of internal body structures; microscopic anatomy is the study of how living organisms perform their functions.
How do oxygen and nutrients reach the osteocytes supporting each osteon?
A) Oxygen and nutrients diffuse through the mineralized osteoid B) Cytoplasmic extensions located in the canaliculi allow oxygen and nutrients to pass from cell to cell. C) Perforating canals carry the blood between the periosteum and each osteocyte. D) Dendritic cells move between the lamellae delivering oxygen.