Question 1

Vessels that regulate blood flow into capillary beds are

Accepted Answer

A)  Arterioles 
B)  Elastic arteries 
C)  Muscular arteries 
D)  Veins 
E)  Venules 
A)  Arterioles 
B)  Elastic arteries 
C)  Muscular arteries 
D)  Veins 
E)  Venules A

Question 2

In the heart's conduction system, the electrical signal travels from the atrioventricular node to the

Accepted Answer

A)  Atrioventricular bundle (bundle of His) 
B)  Bundle branches 
C)  Junctional fibers 
D)  Purkinje fibers 
E)  Sinoatrial node 
A)  Atrioventricular bundle (bundle of His) 
B)  Bundle branches 
C)  Junctional fibers 
D)  Purkinje fibers 
E)  Sinoatrial node A

Question 3

____ capillaries, found in the pancreas, are highly porous and allow high volumes of fluids to pass through them, whereas ____ capillaries, found in the muscles, consist of more tightly joined cells that allow a high degree of selective materials to pass through them.

Accepted Answer

A)  Continuous, fenestrated 
B)  Fenestrated, continuous 
C)  Fenestrated, sinusoidal 
D)  Sinusoidal, continuous 
E)  Sinusoidal, fenestrated 
A)  Continuous, fenestrated 
B)  Fenestrated, continuous 
C)  Fenestrated, sinusoidal 
D)  Sinusoidal, continuous 
E)  Sinusoidal, fenestrated B

Question 4

Moving from the lumen to the external surface of a typical vessel, the layers are

Accepted Answer

A)  Basal lamina → endothelium → subendothelium → internal elastic lamina → smooth muscle → connective tissue → external elastic lamina 
B)  Endothelium → basal lamina → subendothelium → internal elastic lamina → smooth muscle → external elastic lamina → connective tissue 
C)  Endothelium → subendothelium → basal lamina → internal elastic lamina → smooth muscle → connective tissue → external elastic lamina 
D)  Endothelium → subendothelium → basal lamina → smooth muscle → internal elastic lamina → external elastic lamina → connective tissue 
E)  Internal elastic lamina → endothelium → basal lamina → subendothelium → smooth muscle → connective tissue → external elastic lamina 
A)  Basal lamina → endothelium → subendothelium → internal elastic lamina → smooth muscle → connective tissue → external elastic lamina 
B)  Endothelium → basal lamina → subendothelium → internal elastic lamina → smooth muscle → external elastic lamina → connective tissue 
C)  Endothelium → subendothelium → basal lamina → internal elastic lamina → smooth muscle → connective tissue → external elastic lamina 
D)  Endothelium → subendothelium → basal lamina → smooth muscle → internal elastic lamina → external elastic lamina → connective tissue 
E)  Internal elastic lamina → endothelium → basal lamina → subendothelium → smooth muscle → connective tissue → external elastic lamina

Question 5

Lymphatic vessels

Accepted Answer

A)  Are open-ended 
B)  Eventually drain into one of the subclavian veins 
C)  Have fewer valves than veins 
D)  Have simple squamous epithelial cells separated by tight junctions 
E)  Merge with capillary networks throughout the body 
A)  Are open-ended 
B)  Eventually drain into one of the subclavian veins 
C)  Have fewer valves than veins 
D)  Have simple squamous epithelial cells separated by tight junctions 
E)  Merge with capillary networks throughout the body

Question 6

Arteries are best described as

Accepted Answer

A)  Thick-walled vessels that carry blood toward the heart 
B)  Thick-walled vessels that carry oxygenated blood 
C)  Thin-walled vessels that carry blood away from the heart 
D)  Thin-walled vessels that carry deoxygenated blood 
E)  Not one of the above is an accurate description of arteries 
A)  Thick-walled vessels that carry blood toward the heart 
B)  Thick-walled vessels that carry oxygenated blood 
C)  Thin-walled vessels that carry blood away from the heart 
D)  Thin-walled vessels that carry deoxygenated blood 
E)  Not one of the above is an accurate description of arteries

Question 7

Which of the following is not a component of the tunica intima of a muscular artery?

Accepted Answer

A)  Internal elastic lamina 
B)  Simple squamous epithelia 
C)  Smooth muscle 
D)  Subendothelial connective tissue 
E)  All of the above compose the muscular artery tunica intima 
A)  Internal elastic lamina 
B)  Simple squamous epithelia 
C)  Smooth muscle 
D)  Subendothelial connective tissue 
E)  All of the above compose the muscular artery tunica intima

Question 8

Purkinje fibers of the conductive system of the heart are embedded in the

Accepted Answer

A)  Epicardium 
B)  Myocardium 
C)  Subendocardium 
D)  Subepicardium 
E)  Visceral pericardium 
A)  Epicardium 
B)  Myocardium 
C)  Subendocardium 
D)  Subepicardium 
E)  Visceral pericardium

Question 9

Pericytes are found in association with

Accepted Answer

A)  Arterioles 
B)  Capillaries 
C)  Elastic arteries 
D)  Muscular arteries 
E)  Veins 
A)  Arterioles 
B)  Capillaries 
C)  Elastic arteries 
D)  Muscular arteries 
E)  Veins

Question 10

Which of the following statements about veins is false?

Accepted Answer

A)  Layering in the walls is indistinct 
B)  Most small and medium-sized veins contain valves 
C)  The lumina are larger than corresponding arteries 
D)  Vasa vasorum in large veins are less common than in corresponding arteries 
E)  Walls are thinner than those found in corresponding arteries 
A)  Layering in the walls is indistinct 
B)  Most small and medium-sized veins contain valves 
C)  The lumina are larger than corresponding arteries 
D)  Vasa vasorum in large veins are less common than in corresponding arteries 
E)  Walls are thinner than those found in corresponding arteries

Question 11

The tunica media

Accepted Answer

A)  Contains collagen and elastic fibers 
B)  Directly surrounds the lumen of the blood vessel 
C)  Includes the external elastic lamina 
D)  Is composed of simple squamous epithelia 
E)  Is not found in venules, arterioles, or capillaries 
A)  Contains collagen and elastic fibers 
B)  Directly surrounds the lumen of the blood vessel 
C)  Includes the external elastic lamina 
D)  Is composed of simple squamous epithelia 
E)  Is not found in venules, arterioles, or capillaries

Question 12

Which of the following is true of angiogenesis rather than vasculogenesis?

Accepted Answer

A)  Capillary sprout is formed following basal laminal degradation of the parent vessel 
B)  Endothelial capillary tubes are formed following angioblast proliferation 
C)  Angiogenesis is dependent upon vascular endothelial growth factor and vascular endothelial growth factor receptor-2 
D)  Angiogenesis occurs solely in the embryo 
E)  Angiogenesis produces new vessels from scratch rather than forming new vessels from pre-existing ones 
A)  Capillary sprout is formed following basal laminal degradation of the parent vessel 
B)  Endothelial capillary tubes are formed following angioblast proliferation 
C)  Angiogenesis is dependent upon vascular endothelial growth factor and vascular endothelial growth factor receptor-2 
D)  Angiogenesis occurs solely in the embryo 
E)  Angiogenesis produces new vessels from scratch rather than forming new vessels from pre-existing ones

Vessels that regulate blood flow into capillary beds are

In the heart's conduction system, the electrical signal travels from the atrioventricular node to the

capillaries, found in the pancreas, are highly porous and allow high volumes of fluids to pass through them, whereas capillaries, found in the muscles, consist of more tightly joined cells that allow a high degree of selective materials to pass through them.

Moving from the lumen to the external surface of a typical vessel, the layers are

Lymphatic vessels

Arteries are best described as

Which of the following is not a component of the tunica intima of a muscular artery?

Purkinje fibers of the conductive system of the heart are embedded in the

Pericytes are found in association with

Which of the following statements about veins is false?

The tunica media

Which of the following is true of angiogenesis rather than vasculogenesis?

Epithelium

Epithelial Glands

Cell Signaling

Connective Tissue

Osteogenesis

Blood and Hematopoiesis

Muscle Tissue

Nervous Tissue

Sensory Organs: Vision and Hearing

Immune-Lymphatic System

Integumentary System

Respiratory System

Urinary System

Upper Digestive Segment

Lower Digestive Segment

Digestive Glands

Neuroendocrine System

Endocrine System

Spermatogenesis

Sperm Transport and Maturation

Follicle Development and the Menstrual Cycle

Fertilization, Placentation, and Lactation

Filters

Exam 12: Cardiovascular System

Vessels that regulate blood flow into capillary beds are

In the heart's conduction system, the electrical signal travels from the atrioventricular node to the

____ capillaries, found in the pancreas, are highly porous and allow high volumes of fluids to pass through them, whereas ____ capillaries, found in the muscles, consist of more tightly joined cells that allow a high degree of selective materials to pass through them.

Moving from the lumen to the external surface of a typical vessel, the layers are

Lymphatic vessels

Arteries are best described as

Which of the following is not a component of the tunica intima of a muscular artery?

Purkinje fibers of the conductive system of the heart are embedded in the

Pericytes are found in association with

Which of the following statements about veins is false?

The tunica media

Which of the following is true of angiogenesis rather than vasculogenesis?

Epithelium

Epithelial Glands

Cell Signaling

Connective Tissue

Osteogenesis

Blood and Hematopoiesis

Muscle Tissue

Nervous Tissue

Sensory Organs: Vision and Hearing

Immune-Lymphatic System

Integumentary System

Respiratory System

Urinary System

Upper Digestive Segment

Lower Digestive Segment

Digestive Glands

Neuroendocrine System

Endocrine System

Spermatogenesis

Sperm Transport and Maturation

Follicle Development and the Menstrual Cycle

Fertilization, Placentation, and Lactation

Filters

capillaries, found in the pancreas, are highly porous and allow high volumes of fluids to pass through them, whereas capillaries, found in the muscles, consist of more tightly joined cells that allow a high degree of selective materials to pass through them.