Explain how the heart pumps blood into two separate closed circuits that are arranged in series
What will be an ideal response
The two circuits are the pulmonary and systemic circuits.Venous blood from the systemic circulation enters the right atrium. The blood moves from the right atrium into the right ventricle of the heart, which pumps blood through the pulmonary circuit eventually filling the left atrium. The blood moves from the left atrium into the left ventricle of the heart, which pumps blood through the systemic circuit back into the right atrium.
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Commissural fibers
A) carry pain information to the correct brain structure. B) are divided by the longitudinal fissure. C) link the cerebral cortex to the diencephalon. D) interconnect and allow communication between cerebral hemispheres. E) connect the frontal lobe to other lobes of the same hemisphere.
Using Figure 26.3, match the following:
1) The stage called ovulation.
2) Vesicular (Graafian) follicle.
3) Primary follicles.
4) Primordial follicle.
5) Corpus luteum.
6) Mature follicle.
Shaking the head "no" involves which of the following movements?
A. lateral and medial rotation B. left and right rotation C. internal and external rotation D. all of the above are correct
What protein is present in large amounts in connective tissue proper?
A. Enamel B. Collagen C. Keratin D. Mucin