Chapter 1 (page 8)

Question 1

Is the largest lymph organ. It is blood rich and about the size of a fist. It is located in the left side of the abdominal cavity just beneath the diaphragm.

Answer 1

SPLEEN

Question 2

The functions of spleen are:

 * site for lymphocyte proliferation. 
 * immune surveillance and response. 
 * Blood-cleansing functions (extracts aged and defective          blood cells and platelets from blood.
* It can also remove debris, foreign matter, bacteria, viruses, toxins, etc. from the blood). 

Give (3) three more functions of the spleen.

Answer 2

stores breakdown products of RBC for later use (i.e.- iron)
site of RBC production in fetus
stores blood platelets

Question 3

Important functions primarily during early years. Largest at puberty (still weighs less than one ounce). Replaced largely by fat in adulthood.

Answer 3

THYMUS

Question 4

Two functions of Thymus are ______________________ and important in the maturation of specialized lymphocytes (T-cells).

Answer 4

source of lymphocytes before birth

Question 5

The Thymus differs from other lymph organs in two ways:

Answer 5

i) Functions strictly in T-cell maturation therefore it is the only lymph organ that does not directly fight antigens.
ii) Framework of Thymus consists of epithelial cells rather than reticular fibers.

Question 6

__________ are the simplest type of lymph organ. Form ring of lymphatic tissue around entrance of pharynx.

Answer 6

TONSILS

Question 7

Palatine tonsils - located on either side of posterior end of oral cavity. They are the smallest tonsils and most often infected. True or False?

Answer 7

False

Question 8

Where is Pharyngeal tonsils located?

Answer 8

posterior wall of nasopharynx

Question 9

What tonsils are located at the base of tongue.

Answer 9

Lingual tonsils

Question 10

This tonsils surrounds the opening of the auditory tubes into the pharynx.

Answer 10

Tiny Tubal tonsils

Question 11

They gather and remove any pathogen entering the pharynx in inhaled air or food.

Answer 11

Palatine tonsils
Pharyngeal tonsils
Lingual tonsils
Tiny Tubal tonsils

Question 12

PARTS of INTESTINES:
Lymph capillaries called ________ are present in finger - like _______ of the intestinal mucus. They drain lymph from the digestive viscera. It is milky white rather than clear because the lacteals also receive digestive fats from the intestine. Other lymph organs in the intestines are called _______________.

Answer 12

lacteals
villi
Peyer’s patches (like tonsils).

Question 13

What is the function of Peyer’s patches (like tonsils)?

Answer 13

Lymphoid nodules in wall of intestine that prevent invasion of pathogens