Smooth muscle can be found in the small intestines.

A、the same receptors activate three different second messengers

B、The same second messengers activate three different intracellular cascades.

C、The same enzyme that breaks down glycogen also breaks down fat and relaxes muscle.

D、None of the above.

A、Neutrophils

B、Fat cells

C、Endothelial cells

D、Macrophages and smooth muscle cells

A、the smooth muscle of alimentary tract depolarizes and repolarizes spontaneously and slowly in a cyclic fashion

B、is also called slow wave

C、It has a same frequency in diffferent locations of the GI tract

D、its amplitude is about 5-15 mV

A、cardiac muscle

B、smooth muscle

C、skeletal muscle

D、myoneural junction

A、altered capillary permeability.

B、altered plasma oncotic pressure.

C、altered vascular smooth muscle contraction.

D、altered tissue hydrostatic pressure.

A、It has a same frequency in diffferent locations of the GI tract

B、the smooth muscle of alimentary tract depolarizes and repolarizes spontaneously and slowly in a cyclic fashion

C、is also called slow wave

D、its amplitude is about 5-15 mV

A、Neuroectoderm

B、Endoderm

C、Ectoderm

D、Visceral mesoderm

A、Are competitive antagonists at α1-adrenergic receptors

B、Have potent direct vasodilator actions on vascular smooth muscle

C、Enhance gastric acid secretion through a histamine-like effect

D、Cause hypotension and bradycardia

E、Are used chronically for the treatment of primary hypotension

A、It increases contractions and activity of the fallopian tube smooth muscle and cilia

B、It induces thick, sticky mucus in the cervix.

C、It inhibits the milk-inducing effects of prolactin.

D、It increases body temperature.

E、It exerts negative feedback on the hypothalamus and anterior pituitary

A、is the largest part of vascular tunic.

B、divides the chamber of eye into anterior and posterior parts.

C、is colourless and transparent.

D、has a anterior portion called the ciliary ring.

E、contains smooth muscle fibers called ciliary muscle.