Human Anatomy: Esophagus Structure and Function

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What type of muscle makes up the first 1/3 of the muscular layer of the esophagus?

Cardiac muscle

Skeletal muscle (correct)

Smooth muscle

Striated muscle

In which part of the body is the esophagus located in the thorax?

Between vertebrae and aorta

Between diaphragm and liver

Between vertebrae and trachea (correct)

Between heart and lungs

What type of muscle makes up the external part of the gastroesophageal sphincter?

Striated muscle

Cardiac muscle

Smooth muscle

Skeletal muscle (correct)

Which vertebral level does the esophagus penetrate through the diaphragm?

T10 Signup and view all the answers

What type of epithelium is present at the junction where the stratified squamous epithelium of the esophagus meets the simple columnar epithelium?

Simple columnar epithelium Signup and view all the answers

What type of muscle makes up the second 1/3 of the muscular layer of the esophagus?

Smooth muscle Signup and view all the answers

Which of the following structures is NOT associated with the hepatic portal system?

Pulmonary vein Signup and view all the answers

What is the primary function of the pituitary gland?

Regulating other endocrine glands Signup and view all the answers

Which of the following substances is NOT transported by the hepatic portal vein?

Oxygen Signup and view all the answers

Which vein is NOT a contributor to the hepatic portal vein?

Inferior vena cava Signup and view all the answers

Which of the following statements about the hepatic portal system is correct?

It transports oxygen-poor blood from the digestive organs to the liver Signup and view all the answers

Which of the following is NOT a function of the hypothalamohypophyseal system?

Production of bile Signup and view all the answers

Which organ in the digestive system is responsible for storing and concentrating bile?

Gallbladder Signup and view all the answers

In the digestive system, which organ is responsible for producing enzymes that aid in the digestion of carbohydrates, proteins, and fats?

Pancreas Signup and view all the answers

What is the correct order of organs in the alimentary canal from the cranial end to the caudal end?

Oral Cavity, Esophagus, Pharynx, Stomach Signup and view all the answers

Which part of the digestive system absorbs most of the nutrients from digested food?

Small intestine Signup and view all the answers

Which of the following is not considered an accessory organ in the digestive system?

Large intestine Signup and view all the answers

Human Anatomy: Esophagus Structure and Function

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