Muscular System and Lymphatic & Immune System

Question 1

The origin is the part of the muscle that is

Answer 1

Stationary

Question 2

The insertion is the part that is

Answer 2

Movable

Question 3

Which is antagonistic to biceps brachii?

Answer 3

Triceps Brachii

Question 4

Which muscles consists of intercalated discs

Answer 4

Cardiac

Question 5

In what way are cardiac muscles and skeletal similar

Answer 5

both have striations

Question 6

Which is true about the structure of smooth muscle

• overlapping pattern of actin
  and myosin similar to
  skeletal muscle
• consist of an irregular arrangement of actin and myosin
• do not consist of actin or myosin

Answer 6

consists of an irregular arrangement of actin and myosin

Question 7

Function of smooth muscles

• contract relatively fast and in a controlled manner
• contract relatively slowly in a controlled manner
• contract relatively slowly and in an uncontrolled manner
• contract with autorhythmicity

Answer 7

contract relatively slowly in a controlled manner

Question 8

Myofibrils are composed of individual

Answer 8

myofilaments

Question 9

Muscles are held in place and covered by

Answer 9

fascia

Question 10

The functional unit of a muscle is

Answer 10

sarcomere

Question 11

Thin filaments within a muscle fiber are called

Answer 11

Actin

Question 12

This substance will cross the NMJ to communicate w/ individual muscle fibers

Answer 12

Acetylcholine

Question 13

The energy source for muscle contractions is

Answer 13

ATP

Question 14

The A band in a myofibril is an area of

Answer 14

thick filaments

Question 15

A sarcomere is defined as the section of fiber between

Answer 15

Z lines

Question 16

Tendons connect

Answer 16

bones to muscles

Question 17

CT that surrounds individual fibers

Answer 17

Endomysium

Question 18

There are over (__) muscles in the body

Answer 18

600

Question 19

The (___) is your buttocks

Answer 19

gluteus maximus

Question 20

Muscles (___) when they contract

Answer 20

shorten

Question 21

Monocytes move from systemic circulatory system into general CT, where they differentiate into what phagocytic cell type?

Answer 21

macrophages

Question 22

Which of the ff cell types of the innate immune system does not perform phagocytosis?

• Macrophage
• Basophil
• Eosinophil
• Neutrophil

Answer 22

Basophil

Question 23

Myelogenous leukemias are caused by the cancerous production of innate (non-specific) immune system cells: in which tissue is such production most likely to occur?

• Bone marrow
• Lymph node
• Thymus
• Spleen

Answer 23

Bone marrow

Question 24

Humoral immunity is a type of adaptive immunity that results in the circulation of which of the ff throughout the blood?

• Antigen
• Antibodies
• Natural Killer Cells
• Macrophage

Answer 24

Antibodies

Question 25

Which portion of an antibody provides antigen-binding sites?

Answer 25

Variable Portion

Question 26

Which of the ff is not one of the three main main antigen-presenting cell (APCs)? - Dendritic cells - Natural Killer Cells - B lymphocytes - Macrophages

Answer 26

Natural Killer (NK) cells

Question 27

Major histocompatibility complex (MHC) refers to a large group of genes that code for proteins that play an essential role in which of the FF? - Phagocytosis by Macrophages - Phagocytosis by Neutrophils - Antigen presentation to B-lymphocytes - Antigen presentation to T-lymphocytes

Answer 27

Antigen presentation to T-lymphocytes

Question 28

In the developing fetus, prenatal hematopoiesis is not generally known to occur in which of the ff body parts? - Appendix - Lymph nodes - Liver - Spleen

Answer 28

Appendix

Question 29

Recognition of self vs. non-self by the adaptive immune system in humans is accomplished in which of the following ways? - Exposure of T-cells to body’s own antigen in the bursa of Fabricus - Exposure of B-cells to body’s own antigen in the bursa of Fabricus - Exposure of T-cells to body’s own antigen in the Thymus - Exposure of B-cells to body’s own antigen in the Thymus

Answer 29

Exposure of T-cells to body’s own antigen in the Thymus

Question 30

Central tolerance refers to which of the following processes? - Destruction of lymphocytes that are specific for self-antigens - Destruction of lymphocytes that are NOT specific for self-antigens - Destruction of self-antigens that are specific for lymphocytes - Production of self-antigens that are specific for lymphocytes

Answer 30

Destruction of lymphocytes that are specific for self-antigens