Chapter 01 Feedback Quiz

The structural and functional units of organisms are the Select one: a. organelles. b. cells. c. tissues. d. organs. e. organ systems.

b. cells. The basic unit of all organisms is the cell.

Homeostatic mechanisms Select one: a. keep variables exactly at the set point. b. help to keep a relatively constant internal environment in the body. c. act to keep values out of the normal range. d. usually operate by positive feedback. e. produce most disease conditions.

b. help to keep a relatively constant internal environment in the body. Homeostatic mechanisms help to keep a relatively constant internal environment in the body.

Which of these planes can divide the body into equal halves? Select one: a. frontal (coronal) b. median c. transverse d. sagittal

b. median A median plane divides the body into equal right and left halves.

Serous membranes Select one: a. line body cavities that open to the outside. b. produce a lubricating film of fluid. c. are found only on the walls of the thoracic cavity. d. separate the abdominal cavity from the pelvic cavity. e. completely cover retroperitoneal organs.

b. produce a lubricating film of fluid. Correct: Serous membranes produce a lubricating fluid.

The serous membrane on the surface of the lungs is called Select one: a. parietal pericardium. b. visceral pericardium. c. parietal pleura. d. visceral pleura. e. parietal peritoneum.

d. visceral pleura. The serous membrane on the surface of the lungs is called the visceral pleura.

Coronal (frontal) planes divide the body into ______ portions. Select one: a. right and left b. anterior and posterior c. superior and inferior d. dorsal and ventral e. both b and d

e. both b and d A coronal (frontal) plane divides the body into anterior and posterior portions (ventral and dorsal portions).

The thoracic cavity is divided into two parts by the Select one: a. mediastinum. b. pleural cavity. c. diaphragm. d. peritoneal membranes. e. pelvic cavity.

a. mediastinum. The thoracic cavity is divided into two parts by the mediastinum.

The serous membrane lined cavity surrounding the heart is called the Select one: a. pericardial cavity. b. peritoneal cavity. c. pleural cavity.

a. pericardial cavity. The serous membrane lined cavity containing the heart is the pericardial cavity.

You are standing on your head. Your head is to your neck. Select one: a. superior b. inferior c. superficial d. medial e. proximal

a. superior Anatomical terms always refer to a body in anatomical position. Even if you are standing on your head, your head is superior to your neck.

Given these levels of organization: 1. cell, 2. chemical, 3. organelle, 4. organ, 5. tissue. Choose the arrangement that lists the levels of organization in the correct order from smallest to largest. Select one: a. 1,2,3,4,5 b. 2,3,1,5,4 c. 3,2,1,4,5 d. 4,1,3,2,5 e. 5,3,1,4,2

b. 2,3,1,5,4 The levels of organization listed from smallest to largest are: 2. Chemical, 3. organelle, 1. cell, 5. tissue, 4. organ.

The body system that consists of the skin, hair, nails, and sweat glands and provides protections and regulates temperature is the Select one: a. muscular system. b. skeletal system. c. integumentary system. d. endocrine system. e. lymphatic system.

c. integumentary system. The integumentary system provides protection, regulates temperature, prevents water loss, and produces vitamin D precursors. It consists of skin, hair, nails and sweat glands.

A term that means "toward the midline" is: Select one: a. distal b. lateral c. medial d. proximal e. superior

c. medial Medial means "toward the midline."

The body system that contains the kidneys and the bladder and removes waste products form the blood and regulates blood pH, ion balance and water balance is the Select one: a. digestive system. b. respiratory system. c. urinary system. d. cardiovascular system. e. nervous system

c. urinary system. The urinary system removes waste products from the blood and regulates blood pH, ion balance, and water balance. It consists of the kidneys, urinary bladder, and ducts that carry urine.

Which of these statements correctly describes anatomic position? Select one: a. A person that is lying supine with arms at the side is in anatomic position. b. A person that is lying prone with arms at the side is in anatomic position c. A person standing erect that is facing forward with the arms hanging to the sides with the palms of the hands facing medially is in anatomic position. d. A person standing erect that is facing forward with the arms hanging to the sides with the palms of the hands facing forward is in anatomic position. e. A person standing erect that is facing forward with the arms hanging to the sides with the palms of the hands facing laterally is in anatomic position.

d. A person standing erect that is facing forward with the arms hanging to the sides with the palms of the hands facing forward is in anatomic position. Anatomic position refers to a person standing erect with the face directed forward, the upper limbs hanging to the sides, and the palms of the hands facing forward.

Which of these conditions indicate positive feedback has occurred? Select one: a. Blood pressure decreases greatly; blood flow to the heart is inadequate, and blood pressure decreases. CorrectCorrect: As in the example, positive feedback causes a deviation from normal to become even greater. b. Hot temperatures increase your body temperature above normal; you sweat. c. Cold temperatures decrease your body temperature below normal; you shiver. d. Blood pressure decreases; as a result, your heart rate increases.

d. Blood pressure decreases; as a result, your heart rate increases. As in the example, positive feedback causes a deviation from normal to become even greater.

Negative-feedback mechanisms Select one: a. are not homeostatic. b. are rare in healthy individuals. c. respond by making deviations from normal even larger. d. are counteracted by most medical therapy. e. may have a receptor, a control center, and an effector.

e. may have a receptor, a control center, and an effector. A negative feedback mechanism may have a receptor, a control center, and an effector.

The wrist is ______ to the hand. Select one: a. distal b. inferior c. lateral d. medial e. proximal

e. proximal The wrist is proximal to the hand.