Lymphatic System

Question 1

Palatine Tonsils

Answer 1

a pair of soft tissue masses located at the rear of the throat (pharynx). Each tonsil is composed of tissue similar to lymph nodes, covered by pink mucosa (like on the adjacent mouth lining).

Question 2

Palatine Tonsils (Histology)

Answer 2

Question 3

Lingual Tonsils

Answer 3

a collection of lymphatic tissue located in the lamina propria of the root of the tongue. This lymphatic tissue consists of the lymphatic nodules rich in cells of the immune system (immunocytes).

Question 4

Lingual Tonsils (Histology)

Answer 4

Question 5

Palatine Tonsils (Histology)

Answer 5

Question 6

Lingual Tonsils (Histology)

Answer 6

Question 7

Palatine Tonsils (Histology)

Answer 7

Question 8

Pharyngeal Tonsils

Answer 8

a mass of lymphatic tissue, similar to the (palatine) tonsils, that is attached to the back wall of the nasal pharynx (i.e., the upper part of the throat opening into the nasal cavity proper).

Question 9

Pharyngeal Tonsils (Histology)

Answer 9

Question 10

Pharyngeal Tonsils (Histo)

Answer 10

Question 11

Pharyngeal Tonsils (Histo)

Answer 11

Question 12

Pharyngeal Tonsils (Histo)

Answer 12

Question 13

Tubal Tonsils

Answer 13

lymphoid tissue around the opening of the Eustachian tube in the lateral wall of the nasopharynx. They form the lateral aspect of the Waldeyer’s ring. The epithelial covering of the tubal tonsils is ciliated pseudostratified epithelium.

Question 14

Thymus

Answer 14

a specialized primary lymphoid organ of the immune system. Within the thymus, Thymus cell lymphocytes or T cells mature. T cells are critical to the adaptive immune system, where the body adapts specifically to foreign invaders.

Question 15

Thymus (Trabeculae)

Answer 15

Question 16

Thymus (Lobules with Cortex + Medulla)

Answer 16

Question 17

Spleen

Answer 17

an organ found in virtually all vertebrates. Similar in structure to a large lymph node, it acts primarily as a blood filter.

Question 18

Spleen (Red Pulp)

Answer 18

Question 19

Spleen (White Pulp)

Answer 19

Question 20

Cervical Lymph Node

Answer 20

lymph nodes found in the neck

Question 21

Inguinal Lymph Nodes

Answer 21

lymph nodes in the groin area

Question 22

Axillary Lymph Nodes

Answer 22

a group of lymph nodes in the axilla and receive lymph from vessels that drain the arm, the walls of the thorax, the breast and the upper walls of the abdomen.

Question 23

Afferent + Efferent Lymph Node Vessels

Answer 23

Acknowledge afferent + efferent transport

Question 24

Lymph Node (Capsule)

Answer 24

Question 25

Lymph Node (Medulla w/ Medullary Sinuses)

Answer 25

Question 26

Lymph Node (Cortex + Follicle)

Answer 26

Question 27

Thoracic Duct

Answer 27

the largest lymphatic vessel in the human body. Around 75% of the lymph from the entire body (aside from the right upper limb, right breast, right lung and right side of the head and neck) passes through the thoracic duct.

Question 28

Right Lymphatic Duct

Answer 28

drains lymph from the right upper limb, right side of thorax and right halves of head and neck. The thoracic duct drains lymph into the circulatory system at the left brachiocephalic vein between the left subclavian and left internal jugular veins.

Question 29

Appendix

Answer 29

a narrow, finger-shaped pouch that projects out from the colon.

Question 30

Peyer’s Patches

Answer 30

groupings of lymphoid follicles in the mucus membrane that lines your small intestine. Lymphoid follicles are small organs in your lymphatic system that are similar to lymph nodes.

Question 31

Peyer’s Patches

Answer 31

Question 32

Peyer’s Patches

Answer 32