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Which is an example of homeostasis?

A. body temperature of 37 deg C.

B. falling blood calcium levels.

C. significant loss of blood.

D. abrupt rise in blood glucose after a sugary meal.

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The cavity that encloses the heart is the

A. pleural

B. peritoneal

C. thoracic

D. pericardial

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Which system of the body has a major role to play in homeostasis?

A. muscular

B. integumentary

C. endocrine

D. skeletal

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In the diagram marked by an arrow, the woman has been sliced in a ___ plane.

A. medial

B. capital

C. transverse

D. frontal

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The ulna is ___ to the humerus.

A. distal

B. inferior

C. medial

D. proximal

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Which is a characteristic of a substance that can cross a phospholipid bilayer?

A. ionic

B. electrically charged

C. polar

D. non-polar

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In order for passive transport (for example, diffusion) to occur, there must be a

A. membrane pump.

B. phospholipid bilayer.

C. concentration gradient.

D. hypertonic solution.

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Osmosis is the diffusion of

A.ions

B.glucose

C.solute

D.water

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A red blood cell is placed in a hypotonic solution. After a minute the RBC will

A.swell and burst

B.remain the same size

C.shrivel up

D.lose its hemoglobin

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A bag composed of a semi-permeable membrane is filled with 5% sucrose. It is placed in a beaker filled with 10% sucrose. The bag is not permeable to sucrose. The volume of the bag will

A.increase

B.decrease

C.stay the same

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These cells were removed from the inner surface of a person’s mouth (cheek cells). They are

A.connective tissue

B.muscle tissue

C.epithelial tissue

D.nervous tissue

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This is a longitudinal section through glandular tissue. The cells shown are

A.stratified cuboidal

B.stratified squamous

C.simple cuboidal

D.simple columnar

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This is a section through a type of connective tissue. Most likely it was obtained from

A.a tendon

B.a joint capsule

C.an intervertebral disk

D.articular cartilage

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Which is NOT a function of connective tissue?

A.secrete hormones

B.transport substances

C.insulate the body

D.support the body

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This is a longitudinal section through a type of muscle tissue. The tissue was obtained from the

A.biceps femoris

B.left ventricle

C.uterus

D.urinary bladder

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The uppermost layer of the epidermis is the

A.stratum lucidum

B.stratum germinativum

C.stratum granulosum

D.stratum corneum

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Melanocytes are located in the

A.epidermis

B.dermis

C.hypodermis

D.hyperdermis

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Hair, nails, horns, claws, feathers, reptile scales are all composed of the protein

A.collagen

B.keratin

C.carotene

D.elastin

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The epidermis is composed of ___ ___ tissue.

A.stratified squamous

B.simple squamous

C.stratified cuboidal

D.pseudostratified columnar

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The glands in the skin that produce an oily or waxy secretion are the ___.

A.sweat glands

B.wax glands

C.sebaceous glands

D.hormonal glands

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Which is NOT a function of the skeletal system?

A.store excess glucose

B.protect vital organs

C.store calcium

D.produce blood cells

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The deposition of calcium phosphate crystals during the development of bone is called

A.callus formation

B.calcification

C.bone deposition

D.ossification

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During bone healing, the formation of a bony callus occurs

A.during hematoma formation

B.After bone remodeling has occurred

C.After a hematoma has formed, but before bone remodeling

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This portion of the femur is the

A.proximal epiphysis

B.distal epiphysis

C.proximal diaphysis

D.distal epiphysis

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In this cross-section, the structures that the arrows are pointing towards are

A. osteons

B. capillaries

C. osteocytes

D. canaliculi

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This bone is the

A.temporal

B.parietal

C.zygomatic

D.maxilla

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Which type of joint is exemplified by the shoulder?

A.ball and socket

B.hinge

C.pivot

D.gliding

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The green-colored structures are the

A.ACL and PCL

B.lateral and medial collateral ligaments

C.lateral medial femoral condyles

D.lateral and medial menisci

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The red arrow is pointing toward the

A.occipital bone

B.foramen magnum

C.atlas vertebra

D.styloid process

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The red arrow is pointing to the

A.glenoid process

B.acromion process

C.scapular spine

D.coracoid process

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The red arrow is pointing to a

A.tendon

B.sarcomere

C.fascicle

D.ligament

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Each fascicle within a muscle is surrounding by a tough layer known as the

A.periosteum

B.lamella

C.T-tubule

D.perimysium

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The functional unit of muscle contraction is the

A.myofibril

B.sarcomere

C.myosin head

D.calcium ion

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A bodybuilder is using his biceps to “curl” 100 pounds. What is the approximate tension in his biceps at the 90 degree point.

A.20 pounds

B.100 pounds

C.200 pounds

D.800 pounds

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The vertical striations that are visible in this longitudinal section represent individual

A.myofibrils

B.lamellae

C.sarcomeres

D.mitochondria

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The energy required for contraction is derived from

A.lactic acid

B.oxygen

C.ATP

D.amino acids

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Synaptic vesicles contain

A.acetylcholine

B.calcium ions

C.troponin

D.ATP

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The cell bodies of motor neurons are located in the

A.muscle tissue

B.brain

C.tendons

D.spinal cord

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The neurotransmitter that is released from synaptic vesicles is

A.adrenaline

B.serotonin

C.acetylcholine

D.an action potential

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As an impulse sweeps over the sarcolemma it gains access to the interior of the fiber via the

A.T-tubules

B.sarcoplasmic reticulum

C.synaptic cleft

D.endomysium

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