BIO 204 Anatomy & Physiology 1 Homework--Chapter 1 | Answered latest 2026 - Mount Wachusett Community College.

Anatomy & Physiology 1 Homework--Chapter 1 MULTIPLE CHOICE: Choose the one alternative that best completes the statement or answers the question. Please submit all answers on Blackboard, using the appropriate tool in the “Assignments” folder 1) Which of the following cavities houses the brain ? A) cranial B) spinal C) thoracic D) peritoneal E) ventral 2) The thoracic cavity contains the A) pericardial cavity. B) pericardial and pleural cavities. C) pleural cavities. D) coelom. E) pelvic cavity. 3) An increased rate of breathing as a result of an increased buildup of carbon dioxide in the bloodstream would be best described as an example of . A) responsiveness B) metabolism C) maintaining boundaries D) excretion of metabolic waste 4) The tendency for physiological systems to stabilize an organism’s internal conditions is called A) hemopoiesis. B) amplification. C) self-regulation. D) homeostasis. E) equilibriosis. 5) The diaphragm muscle separates the from the . A) abdominal cavity; pelvic cavity B) pericardial sac; pericardial cavity C) pleural cavity; mediastinum D) pericardial cavity; pleural cavity E) thoracic cavity; abdominopelvic cavity 6) Terms of anatomical direction are used to describe A) one body part in relation to another. B) living matter. C) surgical procedures. D) the nervous system. E) a supine position. 7) Which organ system provides support, protection of soft tissue, mineral storage, and blood formation? A) muscular B) integumentary C) nervous D) endocrine E) skeletal 8) The heart is categorized as a because it is composed of different tissues that work together to pump blood throughout the body. A) tissue B) organism C) system D) cell E) organ 9) Groups of cells that perform different functions but that work collectively toward a common purpose are properly termed a(n) . A) organism B) cell C) organ D) system E) tissue10) The ability of an organism to adapt to changes that occur internally and in the environment is called . Remember—those who do not adapt, do not survive! A) responsiveness B) maintaining boundaries C) oxygen D) metabolism E) movement 11) A chemical imbalance in the body can cause the heart to stop pumping blood, which in turn will cause other tissues and organs to cease functioning. This observation supports the view that A) chemical molecules make up cells. B) blood has magical properties. C) congenital defects can be life-threatening. D) all organisms are composed of cells. E) all levels of organization within an organism are interdependent. 12) Which organ system removes carbon dioxide from the bloodstream? A) respiratory B) cardiovascular C) digestive D) endocrine E) lymphatic 13) The pituitary gland and thyroid gland are organs of the system. A) respiratory B) endocrine C) digestive D) cardiovascular E) lymphatic 14) Which of the following is arranged in correct order from the most complex to the simplest? A) cellular, tissue, molecular, system, organ, organism B) organ, organism, molecular, cellular, tissue, system C) organism, system, organ, tissue, cellular, molecular D) tissue, cellular, molecular, organ, system, organism E) molecular, cellular, tissue, organ, system, organism 15) When blood glucose levels rise, a center in the brain initiates physiological changes to decrease these glucose levels in the blood. This is an example of . A) non homeostatic regulation. B) homeostatic imbalance. C) negative feedback. D) diagnostic regulation. E) positive feedback. 16) Which type of feedback exaggerates the effects of variations from normal, such as occurs in the birthing process and blood clotting? A) positive B) depressing C) negative D) neutral E) All of the answers are correct. 17) An anatomical term that means the opposite of “towards the toes or lower part of the body” is . A) anterior. B) superior. C) posterior. D) inferior. E) abdominal. 18) The wrist is to the elbow. A) medial B) proximal C) lateral D) inferior E) distal 19) The term refers to sum of all catabolic and anabolic process that ocur in a human body A) homeostasis B) temperature C) integration D) anion E) metabolism20) Which of the following is NOT a necessary life function: 20) A) responsiveness B) maintaining boundaries C) oxygen D) metabolism E) movement 21) Which of these is NOT a survival need: 21) A) proper body temperature B) oxygen C) reproduction D) nutrients, such as glucose, fatty acids, and proteins E) water 22) Which of the following is the correct order of elements in a feedback mechanism? 22) A) stimulus, receptor, afferent pathway, control center, efferent pathway, effector, response B) stimulus, receptor, efferent pathway, control center, afferent pathway, effector, response C) receptor, stimulus, efferent pathway, control center, afferent pathway, effector, response D) receptor, stimulus, afferent pathway, control center, efferent pathway, effector, response E) effector, stimulus, efferent pathway, control center, afferent pathway, receptor, response 23) When correctly situated in anatomical position, where are your muscles in relation to your skin? 23) A) proximal B) deep C) distal D) medial E) superficial 24) In describing the relationship between the patellar region and the umbilical region 24) A) the patellar region is medial to the umbilical region B) the umbilical region is posterior to the patellar region C) the patellar region is lateral to the umbilical region D) the patellar region is superior to the umbilical region E) the umbilical region is lateral to the patellar region 25) The region that refers to the wrist is the: 25) A) brachial region B) carpal region C) axillary region D) digital region E) antebrachial region 26) Which of these regions is NOT associated with the ventral (anterior) portion of the head: 26) A) oral B) orbital C) buccal D) nasal E) occipital 27) Which set of regions in the abdominopelvic cavity is medial: 27) A) umbilical, right lumbar, and left lumbar regions B) right and left iliac (inguinal), and hypogastric regions C) iliac (inguinal), lumbar, and hypogastric regions D) epigastric, umbilical, and hypogastric regions E) epigastric, right and left hypochondriac regions 28) The thoracic cavity is to the abdominopelvic cavity. 28) A) lateral B) proximal C) superior D) inferior E) dorsal 29) Which plane divides the body into superior and inferior portions? A) sagittal B) transverse C) orthogonal D) proximal E) frontal30) Which of the following activities does NOT represent an anatomical study: A) making a section through the heart to observe its interior B) observing the parts of a reproducing cell C) studying the process by which nerves conduct electrical impulses D) viewing muscle tissue through a microscope E) examining the surface of a bone 31) The most abundant chemical substance in a human body is . A) proteins B) carbohydrates C) water D) nucleic acids E) lipids 32) Which part of a homeostatic pathway is the part where information is integrated and a motor/efferent signal is generated? A) stimulus B) integration center C) receptor D) efferent pathway E) effector 33) Which of the following orientation and directional terms have the same meaning (in humans): A) anterior and dorsal B) superior and caudal C) posterior and dorsal D) Superficial and medial E) inferior and cranial 34) Histology would be best defined as a study of . A) tissues B) the gross structures of the body C) cell chemistry D) cellsAnswers with brief explanations: 35) Plantar → G) Bottom of the foot • Plantar surface refers to the sole of the foot. 36) Olecranal → F) posterior elbow • Olecranon is the bony prominence of the ulna at the back of the elbow. 37) Acromial → B) bony point at peak of shoulder • The acromion is the tip of the scapula forming the highest point of the shoulder. 38) Antebrachial → A) forearm • Antebrachial pertains to the region between elbow and wrist. 39) Umbilical → D) navel • Umbilical region and term refer to the navel. 40) Gluteal → E) buttocks • Gluteal region comprises the buttocks. 41) Fibular → C) lateral surface of calf • Fibular (peroneal) refers to the lateral aspect of the lower leg where the fibula lies MATCHING: Match the terms on the left to the definitions on the right.