Nutrients will pass from the small intestine into the bloodstream by being absor

Question

Nutrients will pass from the small intestine into the bloodstream by being absorbed through the ____.

Select one:

a. alveoli

b. lacteals

c. villi

d. cells

The most medial muscle of the thigh is the ____.

Select one:

a. sartorius

b. gracilis

c. semimembranosus

d. tensor fascia latae

e. vastus medialis

Which of the following muscles (upon contraction) will pull the ribs in a downward motion thus resulting in exhalation?

Select one:

a. external intercostal

b. internal intercostal

c. diaphragm

The tonsils that can be seen on either side of the uvula are called ___.

Select one:

a. adenoids

b. lingual

c. palatine

d. pharyngeal

Explanation / Answer

Answer 1.

Lacteals are the fat absorbing vessels. They are present in small intestine. When digested chyme comes to the small intestine from the stomach, then, lacteals absorb the still undigested, fat part of the chyme. But these are a part of lymphatic system, and do not take the fat towards the blood stream. On the other hand, villi absorb fatty acids and glycerol into the blood stream.

So, the correct answer is option ‘c’ (villi).

Answer 2.

There are five muscles in the medial thigh. Out of these five, only one is mentioned in the options, i.e. gracilis. So, the other options are automatically ruled out.

So, the correct answer is option ‘b’ (gracilis).

Answer 3.

Intercostal muscles are the muscles present between the ribs. These help in pulling the ribs upwards and downwards during the breathing process. While the external intercostal muscles are important during inhalation, the internal intercostal muscles are important during exhalation.

So, the correct answer is option ‘b’ (internal intercostal muscles).

Answer 4.

When you open your mouth in front of the mirror, you can see a small finger like projection hanging in the end. This is the uvula. Tonsils are present on both the sides of the uvulva.

They are of 4 types. Of the four, the palatine tonsils are present on either side of the uvulva, or you can say at the left and right side of the throat.

So, the correct answer is option ‘c’ (palatine).

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