Just Breathe
The respiratory system is responsible for
A. oxygen entering the body and carbon dioxide leaving the body.
B. carbon dioxide entering the body and oxygen leaving the body.
C. nitrogen leaving the bloodstream.
D. methane formation.
E. the regulation of nutrient absorption.
A. oxygen entering the body and carbon dioxide leaving the body.
Which of the following organs of the urinary system is the storage area for urine?
A. kidney
B. ureter
C. bladder
D. urethra
C. bladder
Emma developed a rotator cuff injury. What part of her body is injured?
A. neck
B. upper back
C. shoulder
D. lower back
E. lower arm
C. shoulder
What is the deltoid muscle shaped like?
A. a long thin line
B. a square
C. a triangle
D. a circle
E. a trapezoid
C. a triangle
Which structure is the initial entryway for air entering the respiratory system?
A. nose (or mouth)
B. trachea
C. lungs
D. pharynx
E. esophagus
A. nose (or mouth)
Which part of the urinary system is shared with the reproductive system in males?
A. bladder
B. ureters
C. kidneys
D. urethra
E. renal pelvis
D. urethra
What is the name of the first cervical vertebra? Why?
A. atlas; Greek mythology
B. atlas; it allows "yes" motion of the head
C. axis; Roman mythology
D. axis; it allows "no" motion of the head
E. sphinoid; Egyptian sphinx mythology
A. atlas; Greek mythology
Of the three types of muscle tissue, which is voluntary?
A. smooth muscle
B. cardiac muscle
C. skeletal muscle
D. both smooth and skeletal
E. both cardiac and skeletal
C. skeletal muscle
What diffuses from the air in the alveoli into the blood?
A. carbon dioxide
B. water
C. nitrogen
D. oxygen
E. All of the answer choices diffuse from air into blood.
D. oxygen
How many openings (inputs and outputs) are there in the urinary bladder?
A. one
B. two
C. three
D. four
E. five
C. three
What criterion is used to categorize the skeleton into axial and appendicular?
A. whether the bones are weight bearing or not
B. whether the bones lie on the midline or on a girdle
C. whether the bones are flat or long
D. whether the bones contain red bone marrow or yellow bone marrow
E. whether the bones articulate with the pelvis or not
B. whether the bones lie on the midline or on a girdle
Which way does the adductor longus move the thigh?
A. away from the midline
B. toward the midline
C. in a circle
D. in a cone
E. towards the back
B. toward the midline
Which part of the respiratory system is composed of skeletal muscle?
A. lungs
B. diaphragm
C. trachea
D. larynx
E. glottis
B. diaphragm
Which of the following is part of a nephron?
A. glomerular capsule
B. proximal convoluted tubule
C. loop of Henle
D. collecting duct
E. All of the answer choices are parts of a nephron.
E. All of the answer choices are parts of a nephron.
Which bone is the longest and strongest bone in the body?
A. humerus
B. pelvis
C. tibia
D. fibula
E. femur
E. femur
What structure attaches a muscle to a bone?
A. ligaments
B. tendons
C. bursae
D. sarcolemma
E. sarcoplasm
B. tendons
Which structure connects the larynx to the bronchial tree?
A. trachea
B. glottis
C. lungs
D. alveoli
E. esophagus
A. trachea
Place the parts of the nephron in order of how filtration would occur.
1. ascending limb of loop
2. descending limb of loop
3. proximal convoluted tubule
4. glomerulus
5. collecting duct
6. distal convoluted tubule
A. 4, 3, 2, 1, 6, 5
B. 1, 2, 3, 4, 5, 6
C. 2, 1, 6, 4, 3, 5
D. 1, 2, 4, 3, 6, 5
E. 6, 4, 1, 2, 3, 5
A. 4, 3, 2, 1, 6, 5
What term is used to describe bone cells?
A. osteocytes
B. chondrocytes
C. trabeculae
D. periosteum
E. epiphysis
A. osteocytes
What is happening during the latent period of a muscle twitch?
A. The muscle relaxes and returns to its former length.
B. Fresh ATP binds to the myosin, causing it to return to its resting position.
C. ADP and phosphate are released, and the power stroke of the contraction occurs.
D. The myosin-actin cross-bridges are broken and the sarcomere shortens.
E. The neurotransmitter is diffusing across the synaptic cleft, causing an electrical signal in the muscle cell.
E. The neurotransmitter is diffusing across the synaptic cleft, causing an electrical signal in the muscle cell.