Question 1

All of the following are true of the SA node EXCEPT that it:

Accepted Answer

A) directly stimulates the ventricles. 
B) directly stimulates the atria. 
C) is the pacemaker. 
D) is influenced by nerve impulses and hormones. 
A) directly stimulates the ventricles. 
B) directly stimulates the atria. 
C) is the pacemaker. 
D) is influenced by nerve impulses and hormones.

Question 2

Hypertension may lead to:

Accepted Answer

A) atherosclerosis. 
B) enlarged prostate. 
C) lung cancer. 
D) low blood pressure. 
A) atherosclerosis. 
B) enlarged prostate. 
C) lung cancer. 
D) low blood pressure.

Question 3

Platelets are large cells that aid in blood clotting. True or False?

Accepted Answer

A) True 
 B)False

Question 4

Red blood cells make up ________% of the total blood volume in females.

Accepted Answer

A) 30 
B) 35 
C) 40 
D) 45 
E) 50 
A) 30 
B) 35 
C) 40 
D) 45 
E) 50

Question 5

A diagnosis of hypertension is made when blood pressure is higher than ________.

Accepted Answer

The answer of A diagnosis of hypertension is made when...

Question 6

All of the following are true statements about the lymphatic system EXCEPT that:

Accepted Answer

A) lymphatic vessels resemble veins because they have valves. 
B) the lymphatic system returns fluids to the bloodstream. 
C) the lymphatic system transports carbohydrates from the small intestine to the blood. 
D) the lymphatic system helps defend the body against disease. 
A) lymphatic vessels resemble veins because they have valves. 
B) the lymphatic system returns fluids to the bloodstream. 
C) the lymphatic system transports carbohydrates from the small intestine to the blood. 
D) the lymphatic system helps defend the body against disease.

Question 7

Which is the "good" cholesterol?

Accepted Answer

A) LDL 
B) HDL 
C) VLDL 
D) VHDL 
A) LDL 
B) HDL 
C) VLDL 
D) VHDL

Question 8

The accumulation of cell wastes causes nearby precapillary sphincters to:

Accepted Answer

A) relax. 
B) contract. 
C) lengthen. 
D) shorten. 
A) relax. 
B) contract. 
C) lengthen. 
D) shorten.

Question 9

Which of the following is smallest in diameter?

Accepted Answer

A) artery 
B) arteriole 
C) capillary 
D) venule 
E) veni 
A) artery 
B) arteriole 
C) capillary 
D) venule 
E) veni

Exam 32: Circulation

All of the following are true of the SA node EXCEPT that it:

Hypertension may lead to:

Platelets are large cells that aid in blood clotting. True or False?

Red blood cells make up ________% of the total blood volume in females.

A diagnosis of hypertension is made when blood pressure is higher than ________.

All of the following are true statements about the lymphatic system EXCEPT that:

Which is the "good" cholesterol?

The accumulation of cell wastes causes nearby precapillary sphincters to:

Which of the following is smallest in diameter?

An Introduction to Life on Earth

Atoms, Molecules, and Life

Biological Molecules

Cell Structure and Function

Cell Membrane Structure and Function

Energy Flow in the Life of a Cell

Capturing Solar Energy: Photosynthesis

Harvesting Energy: Glycolysis and Cellular Respiration

The Continuity of Life: Cellular Reproduction

Patterns of Inheritance

Dna: the Molecule of Heredity

Gene Expression and Regulation

Biotechnology

Principles of Evolution

How Populations Evolve

The Origin of Species

The History of Life

Systematics: Seeking Order Amidst Diversity

The Diversity of Prokaryotes and Viruses

The Diversity of Protists

The Diversity of Plants

The Diversity of Fungi

Animal Diversity I: Invertebrates

Animal Diversity Ii: Vertebrates

Animal Behavior

Population Growth and Regulation

Community Interactions

How Do Ecosystems Work

Earths Diverse Ecosystems

Conserving Earths Biodiversity

Homeostasis and the Organization of the Animal Body

Respiration

Nutrition and Digestion

The Urinary System

Defenses Against Disease

Chemical Control of the Animal Body: the Endocrine System

The Nervous System

The Senses

Action and Support: the Muscles and Skeleton

Animal Reproduction

Animal Development

Plant Anatomy and Nutrient Transport

Plant Reproduction and Development

Plant Responses to the Environment

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