BIO 228 Lymphatic System

Lacteals pick up dietary

lipids

Which of the following vessels have valves?

veins, lymphatic vessels

The spleen initiates an immune response when antigens are found in the blood. This function is associated with the _ pulp.

white

If you feel swollen lymph nodes on your neck just under your jaw, of the following choices, it is most likely that _.

you are fighting off infection

Which of the following are normal functions of the adult spleen?

Act as a reservoir for platelets, phagocytosis of old erythrocytes, phagocytosis of bacteria

Lymph flows through a lymph node in what order?

Afferent lymphatic vessel, lymphatic sinuses, and efferent lymphatic vessel

Excess interstitial fluid is driven into lymphatic capillaries primarily by what type of pressure?

Hydrostatic

Large clusters of lymph nodes are found in which of the following regions?

Inguinal, axillary, and cervical

The order that lymph travels through them

Lymphatic capillaries, lymphatic vessels, lymphatic trunks, lymphatic ducts

Lymph drains from lymphatic trunks into lymphatic _

ducts

Tonsil with it's location

Pharyngeal: Posterior wall of nasopharynx Palantine: Posterolateral region of oral cavity Lingual: Posterior one-third of tongue

_ lymphatic structures are involved in the formation of lymphocytes

Primary

The right lymphatic duct drains which of the following parts of the body?

Right side of chest, right arm, right side of neck and head

Adult red bone marrow is found within spongy bone in which locations?

Roofing bones of the skull, sternum, and vertebrae

Which of the following is the largest lymphatic organ in the body?

Spleen

Which of the following are considered secondary lymphatic structures where lymphocytes are housed after formation?

Spleen, Tonsils, Lymph nodes

Blood flows through the spleen in what order?

Splenic artery, central artery of white pulp, splenic sinusoids of red pulp, and splenic vein

T-lymphocytes migrate to, and mature in the

Thymus

Masses of lymphatic tissue that protect against inhaled and ingested materials and are found within the pharynx

Tonsils

Lymphatic _ are formed from merging lymphatic vessels

Trunks

Lymphedema

When excess interstitial fluid is not reabsorbed, the tissues swell causing _

Lymph from the breast travels through the _ lymph nodes

axillary

When blood plasma leaks out of the capillaries it is then called

interstitial fluid

Lymphatic capillaries are usually _ in diameter than blood capillaries.

larger

MALT stands for

mucosa-associated lymphoid tissue

Lymphatic _ are small clusters of lymphocytes that lack a complete capsule

nodules

The thymus _ after puberty

shrinks

The surgical removal of the tonsils is called a

tonsillectomy

Lymph is moved through lymph vessels by which of the following?

skeletal muscle pumps, respiratory pump

The _ filters blood and acts as a blood reservoir

spleen