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During ________ sleep, dreaming occurs.
A) REM
B) deep
C) beta
D) stage 1
E) stage 2
Chambers within the brain that contain cerebrospinal fluid are called
A) plexuses.
B) ganglia.
C) sinuses.
D) aqueducts.
E) ventricles.
The contraction of a muscle exerts a pull on a bone because muscles attach to bones by
A) ligaments.
B) bursae.
C) tendons.
D) fasciae.
E) myofibrils.
Blood from the brain is drained by the ________ vein.
A) external carotid
B) internal carotid
C) external jugular
D) internal jugular
E) All of the answers are correct.
The increase in effective blood volume that results from venoconstriction is the
A) venous reserve.
B) capacitance of veins.
C) vessel mobilization.
D) venous return.
E) vessel residual.
Most neurons lack ________ and so are permanently blocked from undergoing cell
division.
A) ribosomes
B) endoplasmic reticula
C) a nucleus
D) centrioles
E) cytoplasm
Ribosomes are composed of protein and
A) glycogen.
B) rRNA.
C) ATP.
D) DNA
E) steroids.
The watery fluid component of blood is called
A) hemosol.
B) liquid elements.
C) formed elements.
D) hemoplasm.
E) plasma.
The average length of the menstrual cycle is ________ days.
A) 16
B) 19
C) 21
D) 28
E) 35
The ________ carry blood toward the heart.
A) arterioles
B) arteries
C) veins
D) lacteals
E) capillaries
Identify the branch of biological science that studies the external and internal structure
of the body and the physical relationship among body parts.
A) genetics
B) physiology
C) embryology
D) anatomy
E) cytology
Figure 20-1 The Heart
Which chamber receives oxygenated blood from the pulmonary circuit?
A) 5
B) 10
C) 16
D) 13
E) both 5 and 16
________ promotes water reabsorption at the kidneys and stimulates thirst.
A) ADH
B) Aldosterone
C) Calcitonin
D) Renin
E) Natriuretic peptide
Which of the following statements is true about general senses?
A) They are distributed all over the body.
B) They are all mechanoreceptors.
C) Receptors involved in general sensation consist of naked nerve endings.
D) They are located in sense organs.
E) The reception of the stimulus occurs slowly with these receptors.
Small pockets of synovial fluid that reduce friction and act as a shock absorber where
ligaments and tendons rub against other tissues are called
A) fat pads.
B) menisci.
C) bursae.
D) lacunae.
E) fasciae.
________ are fixed macrophages found in the liver.
A) Astrocytes
B) Oligodendrocytes
C) Microglia
D) Kupffer cells
E) Ventricular macrophages
Figure 24-2 The Wall of the Small Intestine
The structure labeled "5"
A) contributes to the mesentery of the small intestine.
B) has a simple squamous epithelium.
C) is part of the visceral peritoneum.
D) is called the serosa.
E) All of the answers are correct.
