In the Physio experiment on thyroid gland activity, which rat developed a goiter/mass?

a) Hemolysis, vascular spasm, platelet plug formation: Hemolysis (RBC destruction) is not part of hemostasis.

b) Vascular spasm, clotting polycythemia: Polycythemia is an excess of RBCs, unrelated to clotting sequence.

c) Vascular spasm, platelet plug formation, clotting: This is the accurate and standard 3-step sequence of hemostasis.

d) Emigration, clotting, hemolysis: Emigration refers to WBC movement; this choice contains unrelated processes.

a) Hypothalamus: Oxytocin is synthesized by neurosecretory cells in the hypothalamus, specifically in the paraventricular and supraoptic nuclei. After production, it is transported down the axons of these neurons to the posterior pituitary gland, where it is stored and released into the bloodstream.

b) Somatic Nervous System: The somatic nervous system is part of the peripheral nervous system and controls voluntary skeletal muscle movements. It does not produce hormones and has no role in endocrine secretion.

c) Anterior Pituitary Gland: The anterior pituitary produces several hormones (like ACTH, GH, PRL, TSH, LH, and FSH), but oxytocin is not one of them. It is not produced by the anterior pituitary; instead, oxytocin is made in the hypothalamus and released from the posterior pituitary.

d) Posterior Pituitary Gland: While the posterior pituitary stores and releases oxytocin, it does not produce it. The production occurs in the hypothalamus, and the posterior pituitary acts as a storage and release site.