Which of the Following Statements Regarding the Muscularis Externa of the Esophagus

question 62

Multiple Choice

Which of the following statements regarding the muscularis externa of the esophagus is true?

• A) The upper third portion of the esophagus consists of smooth muscle, the middle third portion is a mixture of smooth and skeletal muscles, and the lower third consists of skeletal muscle.
• B) The entire muscularis of the esophagus consists of skeletal muscle only.
• C) The entire muscularis of the esophagus consists of smooth muscle only.
• D) The upper third portion of the esophagus consists of smooth muscle, and the remaining portion is a mixture of skeletal and smooth muscles.
• E) The upper third portion of the esophagus consists of skeletal muscle, the middle third portion is a mixture of skeletal and smooth muscles, and the lower third consists of smooth muscle.

Recognize the psychosocial and emotional implications of sexual dysfunction.

Identify the populations at higher risk for sexual dysfunction and abuse.

Understand how to perform risk assessments for sexually transmitted infections (STIs) and blood-related risks.

Gain knowledge on the necessary health screenings for various demographics concerning sexual health.

---

Definitions:

Killer T Cells

A type of immune cell that attacks and destroys infected cells and cancer cells.

Thrombocytes

Another term for platelets, which are blood cells involved in clot formation to prevent bleeding.

HIV Infection

A virus that attacks the immune system, leading to AIDS if not treated, and is transmitted through certain body fluids like blood and semen.

Prevalence

The proportion of a population found to have a particular condition at a specific time.