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a. What structure of the small intestine is indicated by the pointer? b. What is the digestive physiological purpose of this structure?

What type of tissues may be controlled at the voluntary and involuntary level and generate both force and movement?

If the location of receptors in a target cell varies based on the chemical messenger’s solubility. Locate receptors for lipophilic messengers in cells.

Name the parts of the heart’s electrical system labeled A, B, C, and D.  

Name the blood vessels labeled E, F, and G.

Which of the following endocrine organs essentially secretes hormones from neurons?

Name the blood vessels labeled A, B, K, and L.

Name the layers of the blood vessel labeled A, B, and C.

What is the name of the great vessel labeled 1?

What is the name of the structure labeled C? What is the name of the structure labeled D?