Bio Exam 2
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113 questions
| 🇬🇧 | 🇬🇧 |
| All of the following are functions of lactic acid in sweat except? | Produce a scent that influences behavior |
| All of the following statements describe the dermis except? | The dermis is the skin's most superficial layer |
| How do vitamins A and C contribute to healthy skin? | Help with collagen production |
| How does the process of sweating help the body regulate temperature? | Sweat produced on the skin will evaporate and cool the body if body temperature is too high |
| What are the two ways in which wounds heal? | Regeneration and fibrosis |
| What factors affect hair texture? | The shaft's cross-sectional shape |
| What is the function of dendritic cells in the skin? | To protect the skin from pathogens |
| What is the purpose of cornification? | To form a durable, waterproof layer on the surface of the skin |
| What type of burn is also referred to as a partial thickness burn? | Second-degree burn |
| What type of skin cancer starts in the melanocytes? | Malignant melanoma |
| Which of the following answer choices correctly lists the ABCDEs of skin cancer? | Asymmetry, border, color, diameter, evolving |
| Which of the following statements is not a description of how the skin protects the body? | All of these are descriptions of how the skin protects the body |
| Which statement incorrectly describes a change in skin as it ages? | Blood vessels are quicker to respond to temperature regulation |
| Which type of skin cancer is the most common? | Basal cell carcinoma |
| Wounds that heal by fibrosis result in what? | The wound is healed with scar tissue and normal function is not restored. |
| Wounds that heal by regeneration result in what? | The wound is healed with the same tissue that was damaged and normal function is restored. |
| Hemoglobin transports all of the following except? | Hydroxyl ions |
| How is blood type determined? | By the antigens on the blood cell's surface |
| How long do RBCs typically survive? | 110-120 days |
| If Amy has type AB blood, what blood type can she receive? | All the answers are correct |
| If a pregnant woman has Rh-, which of the following statements is true about her blood? | All of the statements are true |
| If you spin a tube of blood in a centrifuge, what is the bottom layer of blood composed of? | Red blood cells |
| If you spin a tube of blood in a centrifuge, which component of the blood is the heaviest? | Red blood cells |
| If you spin a tube of blood in a centrifuge, which component of the blood is the most abundant? | Plasma |
| What blood test gives a percentage of each leukocyte of the total number of leukocytes in blood? | White blood cell differential |
| What factor causes the production of red blood cells | Erythropoietin |
| What happens to the heme when hemoglobin is broken down by the liver and spleen? | It is broken down to iron and bilirubin |
| What is a thrombus? | A stationary, unnecessary clot |
| What is an embolus? | A moving, unnecessary clot |
| What is hemopoiesis? | The production of blood cells |
| What is serum? | Plasma with clotting factors removed |
| What makes hemoglobin a buffer? | Hemoglobin binds H+ ions |
| What type of anemia can be caused by the lack of intrinsic factor from the stomach that allows vitamin B12 to be absorbed? | Pernicious anemia |
| Where does leukopoiesis occur? | Red bone marrow |
| Which disorder is not considered a cancer of the blood? | Thrombocytopenia |
| Which organs function to remove old, worn out red blood cells? | Liver and spleen |
| What does the CF peps/o mean? | Digestion |
| What hormone tells the gallbladder to contract and release its bile through the cystic duct to the common bile duct? | Cholecystokinin |
| Which hormone tells the pancreas to release bicarbonate ions to neutralize the acidic chyme? | Secretin |
| What is chyme? | All of the answers are correct |
| What is the function of hydrochloric acid in the stomach? | All of the answers are correct |
| What is the function of intrinsic factor? | Allows vitamin B12 to be absorbed |
| What is the function of pepsin in the stomach? | Partially breaks down proteins |
| What is the pH in saliva? | 6.8 to 7.0 |
| What is the term used for swallowing? | Deglutination |
| Where are the submandibular salivary glands? | Inferior to the angle of the mandible on each side |
| Which answer choice below is considered the afferent sensory neuron in the reflex arc for defecation? | Stretch receptors in the rectal wall |
| Which answer choice lists the parts of the small intestine in the correct order? | Duodenum, jejunum, ileum |
| Which cells produce gastrin? | Endocrine cells |
| Which cells produce hydrochloric acid? | Parietal cells |
| Which cells produce intrinsic factor? | Parietal cells |
| Which CF means gums? | Gingiv/o |
| Which cranial nerve is not required for deglutition? | Cranial nerve XI |
| Which digestive parasite crawls out of the anus to lay eggs, which causes an itching sensation? | Pinworms |
| Which disorder occurs when the contents in the abdomen protrude through a weak portion in the abdominal wall? | Abdominal hernia |