Question 1

1. Positive feedback differs from negative feedback because________.

   		positive feedback is generally beneficial while negativefeedback is typically harmful
   		positive feedback tends to enhance the triggering stimulus whilenegative feedback tends to return the body to a homeostatic balanceor \"ideal\" level
   		positive feedback is critical to health while negative feedbackserves only to alert us to potential health threats
   		positive feedback provides moment-to-moment wellbeing whilenegative feedback causes a cascade effect

2 points

Question 2

1. A substance received or given off by your body will likely passthrough which tissue type?

   		muscle tissue
   		epithelial tissue
   		nervous tissue
   		connective tissue

2 points

Question 3

1. What are the most important factors influencing hair growth?

   		sex and hormones
   		age and glandular products
   		nutrition and hormones
   		the size and number of hair follicles

2 points

Question 4

1. The apocrine sweat glands are not the primary gland involved inthermoregulation.

   True

   False

2 points

Question 5

1. Digital Subtraction Angiography (DSA) imaging is most useful indiscovering obstructed blood supplies in organs and tissues.

   True

   False

2 points

Question 6

1. Some of the nerve endings in the skin are sensitive to changesin temperature. They are part of a negative feedback mechanismregulating body temperature. These nerve endings represent a(n)________ in the negative feedback mechanism.

   		control center
   		effector
   		homeostatic balance or \"ideal\" value
   		receptor

2 points

Question 7

1. Fibrocartilage is also known as gristle.

   True

   False

2 points

Question 8

1. William has a cut that is superficial, painful but not bleeding.Based on this information you would predict that the cut haspenetrated to ________.

   		the stratum corneum but not the stratum granulosum
   		the subcutaneous layer, but no deeper
   		the stratum basale but not the dermal layers
   		the papillary layer but not the reticular layer

2 points

Question 9

1. Your instructor gives you an unknown organ for you to examineand identify through microscopy. What should you do first with thesample?

   		examine it for artifacts
   		stain it to enhance contrast
   		cut it into sections
   		fix it with preservative

2 points

Question 10

1. Select the most correct statement concerning skin cancer.

   		Basal cell carcinomas are the least common but mostmalignant.
   		Melanomas are rare but must be removed quickly to prevent themfrom metastasizing.
   		Squamous cell carcinomas arise from the stratum corneum.
   		Most tumors that arise on the skin are malignant.

2 points

Question 11

1. One of the descriptions below is from the perspective ofphysiological study, the rest are from an anatomical perspective.Select the description below that comes from physiologicalperspective.

   		The contraction of smooth muscle in blood vessels(vasoconstriction) can reduce the flow of blood through thevessel.
   		The chambers of the heart and blood vessels leading to and fromthe heart are separated by valves composed of fibrous connectivetissue.
   		The pancreas lies deep to the stomach within the abdominalcavity.
   		The skull is formed by 22 facial and cranial bones.

2 points

Question 12

1. The study of anatomy and physiology assumes and describes ahealthy body. Select the description below that does NOT explainwhy this approach is useful.

   		A healthy body provides a common standard to compare to.
   		Study of a healthy body is less intimidating and more familiarnew students.
   		A healthy body establishes what \"normal\" is.
   		Study of a healthy body provides a foundation for a morecomplete understanding of all human bodies.

2 points

Question 13

1. A light skinned person may appear pink when they become overheated. The best explanation for this is ________.

   		the melanocytes are responding to the heat of the sun and changethe appearance of the skin with increased production
   		blood flow has increased to the sweat glands in order toincreased their metabolic activity
   		the heart is pumping faster because the person was probablyexercising
   		the blood vessels of the dermis have undergone vasodilation,bringing a greater volume of blood to the skin

2 points

Question 14

1. The reason that intervertebral discs exhibit a large amount oftensile strength, which allows them to absorb shock, is becausethey possess ________.

   		collagen fibers
   		hydroxyapatite crystals
   		elastic fibers
   		reticular fibers

2 points

Question 15

1. The right hypochondriac region contains the majority of thestomach.

   True

   False

2 points

Question 16

1. Lungs carry out an excretory function.

   True

   False

2 points

Question 17

1. The coxal joint is most likely found in ________ region of thebody.

   		hip
   		foot
   		hand
   		groin

2 points

Question 18

1. Positive feedback mechanisms tend to enhance the originalstimulus so that the response is accelerated.

   True

   False

2 points

Question 19

1. Which of the following is the best explanation for why cells areconsidered the smallest units of living things.

   		Cells cannot be seen with the naked eye and are consideredmicroscopic.
   		Cells have the ability to reproduce identical copies ofthemselves in a process called mitosis.
   		Cells are the simplest structure to fit all of thecharacteristic necessary to be considered alive.
   		Cells are highly ordered and complex.

2 points

Question 20

1. Which of the following are survival needs of the body?

   		nutrients, water, atmospheric pressure, and oxygen
   		nutrients, water, movement, and reproduction
   		nutrients, water, growth, and reproduction
   		water, atmospheric pressure, growth, and movement