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Which structure of the female reproductive system is the source of the blood and mucosal tissue during menstruation? (You will find hot spots to Select in the image below. Select only the hot spot that corresponds to your answer.  

A.

B.

C.

D.

Answer Explanation:

The inner lining of the uterus is the source of blood and mucosal tissue that is shed during menstruation.

Therefore, the Correct Answer is B.

Q #1: The "gray matter of the brain is largely made up of which of the following?

A. Neuron cell bodies

B. Meninges

C. Neuron cell axons

D. Corpus callosum

Answer Explanation

The gray matter of the brain primarily consists of neuron cell bodies, along with dendrites, glial cells, and unmyelinated axons. It appears gray because it lacks the white fatty myelin sheath that covers many nerve fibers.
Q #2: Which of the following tissues lines the interior structures of the heart?

A. Epicardium

B. Pericardium

C. Myocardium

D. Endocardium

Answer Explanation

The endocardium lines the interior structures of the heart. It is a thin, innermost layer of the heart wall that lines the heart chambers and valves. It is composed of subendocardial connective tissue and endothelial cells that are continuous with blood vessel endothelium.
Q #3: Which of the following correctly orders structures from simple to complex?

A. Organs, tissues, cells, atoms

B. Cell, tissues, atoms, organs

C. Atoms, organs, tissues, cells

D. Atoms, cells, tissues, organs

Answer Explanation

Rationale

Atoms are the smallest and most basic units of matter, and they can combine to form molecules. Cells are the basic units of life, and they are made of molecules. Tissues are groups of cells that work together to perform a specific function, such as muscle tissue or nerve tissue. Organs are collections of tissues that form a larger structure.

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