L4 Must

What is the primary function of the esophagus?

• To produce bile

• To conduct food to the stomach

• To absorb nutrients

• To filter blood

Which part of the digestive system is responsible for the majority of nutrient absorption?

• Large intestine

• Stomach

• Pharynx

• Small intestine

What is the role of the pancreas in the digestive system?

• Absorbs nutrients

• Secretes bile

• Filters lymph

• Produces digestive enzymes and hormones

Which gland is known as the 'master gland' of the endocrine system?

• Pineal gland

• Adrenal gland

• Thyroid gland

• Pituitary gland

What is the function of lymph nodes in the lymphatic system?

• Secrete digestive enzymes

• Absorb nutrients

• Filter lymph and produce antibodies

• Produce hormones

Explain how the structure of the small intestine aids in its function.

• It is lined with smooth muscle for absorption.

• It has a large surface area due to villi and microvilli.

• It is short and wide, allowing for quick digestion.

• It is muscular, which helps in the movement of food.

How does the liver contribute to digestion?

• By filtering blood

• By absorbing nutrients

• By producing insulin

• By secreting bile

What is the primary function of the thymus gland?

• Controls blood sugar levels

• Regulates metabolism

• Secretes adrenaline

• Matures lymphocytes

Describe the pathway of lymphatic fluid in the body.

• It is absorbed by the intestines and transported to the brain.

• It circulates through the bloodstream and is filtered by the spleen.

• It is produced in the liver and flows to the kidneys.

• It flows from lymphatic vessels to lymph nodes and then to the heart.

What is the role of the gall bladder in digestion?

• Absorbs nutrients

• Filters blood

• Stores bile produced by the liver

• Produces digestive enzymes