Human Body Care Exam Guide
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Questions and Answers

What is the primary function of capillaries?

  • To maintain body temperature
  • To carry oxygenated blood to the heart
  • To exchange substances between the blood and the tissues (correct)
  • To transport hormones from glands

Which enzyme is responsible for digesting starches?

  • Amylase (correct)
  • Pepsin
  • Salivary lipase
  • Trypsin

What distinguishes complete proteins from incomplete proteins?

  • Complete proteins are necessary for enzyme function
  • Complete proteins are only found in animal products
  • Complete proteins provide all 20 amino acids in the right amounts (correct)
  • Complete proteins contain more calories

What is the primary function of the thyroid gland?

<p>Regulate metabolism (D)</p> Signup and view all the answers

Which of the following statements about sexually transmitted diseases (STDs) is true?

<p>Chlamydia and gonorrhea are examples of STDs caused by bacteria (C)</p> Signup and view all the answers

What is the primary role of the pyloric sphincter in the digestive system?

<p>It regulates the flow of chyme from the stomach to the small intestine. (A)</p> Signup and view all the answers

Which of the following is NOT a component of the gastrointestinal tract accessories?

<p>Diaphragm (A)</p> Signup and view all the answers

What is the function of the large intestine in the digestive process?

<p>Absorbs vitamins, ions, and water (A)</p> Signup and view all the answers

Which statement accurately describes neurotransmitters?

<p>Dopamine is crucial for motivation and pleasure. (D)</p> Signup and view all the answers

What defines physical dependence on a substance?

<p>The need to restore normal body function. (C)</p> Signup and view all the answers

Which part of the respiratory system is responsible for the initial filtration of air?

<p>Nasal cavities (C)</p> Signup and view all the answers

Which type of movement in the gastric system is primarily responsible for mixing food in the stomach?

<p>Mixing (C)</p> Signup and view all the answers

What does the sympathetic division of the autonomic nervous system primarily respond to?

<p>Loud noises or stressful situations (B)</p> Signup and view all the answers

What is the role of arteries in the circulatory system?

<p>To carry oxygenated blood from the heart to the body (A)</p> Signup and view all the answers

Which statement best describes thermoregulation?

<p>It is the body's process of maintaining stable internal temperature. (D)</p> Signup and view all the answers

What is the primary function of internal respiration?

<p>To exchange oxygen for carbon dioxide in tissues (B)</p> Signup and view all the answers

Which of the following is true about polyunsaturated oils?

<p>They help produce essential hormones and cell membranes. (A)</p> Signup and view all the answers

Which type of organism is primarily responsible for chlamydia and gonorrhea infections?

<p>Bacteria (C)</p> Signup and view all the answers

What is the function of pepsin in the digestive system?

<p>To digest proteins (C)</p> Signup and view all the answers

Which phase occurs last in the ovarian cycle?

<p>Luteal phase (C)</p> Signup and view all the answers

What is the role of capillaries in the circulatory system?

<p>To exchange substances between blood and tissues (A)</p> Signup and view all the answers

What distinguishes external respiration from internal respiration?

<p>External respiration refers to breathing, internal is about gas exchange. (B)</p> Signup and view all the answers

Which function of the liver is crucial for digestion?

<p>Forms and secretes bile (B)</p> Signup and view all the answers

What is the role of the pyloric sphincter in the digestive system?

<p>Allows chyme to pass from the stomach to the small intestine (B)</p> Signup and view all the answers

Which movement mechanism is responsible for the propulsion of food through the gastrointestinal tract?

<p>Peristalsis (C)</p> Signup and view all the answers

What is the primary function of the large intestine?

<p>Absorption of water, ions, and vitamins (B)</p> Signup and view all the answers

What process occurs during inspirations in the respiratory system?

<p>Increase in thoracic cage size (A)</p> Signup and view all the answers

What determines the psychological dependence on a substance?

<p>The habitual use of the substance for pleasure (B)</p> Signup and view all the answers

What is the main function of the nasal cavities during respiration?

<p>Increasing surface area for moistening and warming air (D)</p> Signup and view all the answers

Which of the following correctly explains the role of leukocytes in the body?

<p>Mount an immune response against pathogens (A)</p> Signup and view all the answers

Which of these substances is classified as a stimulant?

<p>Caffeine (D)</p> Signup and view all the answers

What is the term for the contraction and relaxation of the heart muscle?

<p>Diastole and systole (C)</p> Signup and view all the answers

Flashcards

Accessory organs of GI tract

Organs that aid in digestion but are not part of the main GI tract; include salivary glands, liver, gallbladder, and pancreas.

Pyloric sphincter

A ring of muscle that controls the flow of partially digested food (chyme) from the stomach to the small intestine.

Large Intestine Function

Absorbs water, ions, and vitamins from digested food.

Inspiration

The act of breathing in; the process where the chest expands, drawing air into the lungs.

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Systole and Diastole

Systole (contraction) and diastole (relaxation) are the two phases in a heartbeat.

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Leucocytes

White blood cells; defend the body against infection from bacteria or viruses.

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Dopamine function

A neurotransmitter that produces feelings of pleasure and motivation.

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Physical Dependence

A state in which the body requires a substance to maintain a normal state.

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IUD (intrauterine device)

A highly effective contraceptive inserted into the uterus by a doctor.

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Capillary function

Exchange substances between blood and tissues.

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Artery function

Carry oxygenated blood from heart to body.

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Pancreatic amylase function

Digests starches.

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Thyroid gland function

Regulates the body's metabolism.

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What do salivary glands do?

They produce saliva, which contains enzymes that start breaking down food.

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What's the gallbladder's role?

It stores bile produced by the liver, which helps digest fats.

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Peristalsis

A wave-like muscle contraction that moves food through the digestive system.

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What does the pyloric sphincter do?

It controls the flow of food from the stomach to the small intestine.

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What does the large intestine absorb?

It absorbs water, ions, and vitamins from the remaining food.

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What is inspiration?

The process of breathing in, where the lungs expand.

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What happens during systole?

The heart muscle contracts, pumping blood out to the body.

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What are leucocytes?

White blood cells that fight off infection.

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What does dopamine do?

A neurotransmitter that is associated with pleasure and motivation.

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What are stimulants?

Drugs that increase activity in the central nervous system.

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Pepsin's Role

Pepsin is an enzyme found in stomach juice that breaks down proteins into smaller molecules.

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Starch Digester

Pancreatic amylase is an enzyme produced by the pancreas that breaks down starch into simpler sugars.

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STDs Caused by Bacteria

Chlamydia and gonorrhea are sexually transmitted diseases (STDs) caused by bacteria.

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Thermoregulation

Thermoregulation is the body's process of maintaining a stable internal temperature, often through sweating during exercise.

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External Respiration

External respiration is the exchange of gases between the lungs and the blood, where oxygen enters the blood and carbon dioxide leaves.

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Internal Respiration

Internal respiration is the exchange of gases between the blood and the cells, where oxygen enters the cells and carbon dioxide leaves.

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Thyroid Gland's Job

The thyroid gland produces hormones that regulate metabolism, influencing how the body uses energy.

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Polyunsaturated Oils

Polyunsaturated oils are essential fatty acids that are important for building cell membranes and producing some hormones.

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Study Notes

Human Body Care Exam Guide

  • Gastrointestinal Tract Accessories: Salivary glands, liver (produces bile stored in gallbladder), gallbladder, and pancreas
  • Digestive System Movements: Mixing and peristalsis are types of movements in the gastric system.
  • Pyloric Sphincter Function: Regulates chyme flow from stomach to small intestine.
  • Small Intestine: Location where water, ions, and vitamins are absorbed.
  • Cervical/Vaginal Environment for Sperm: Spermicides make the vagina and cervix unsuitable for sperm survival.
  • Cholesterol Transport: Lipoproteins (LDL and HDL) transport cholesterol in blood.
  • Inspiration Process: Thoracic cage expands due to diaphragm and intercostal muscle contraction, causing negative pressure to draw air into the lungs.
  • Nasal Cavity Function: Increases surface area for moistening, warming, and filtering inspired air.
  • Voice Production: Larynx contains vocal cords, where sounds are made through mucosal folds.
  • Heart Muscle Contraction/Relaxation: Systole/diastole represent cardiac muscle contraction and relaxation.
  • Blood Cells (Leukocytes): Have immune reaction against bacteria or viruses.
  • Nerve Impulse Transmission: Convey information along neurons.

Neurotransmitters and Substances

  • Dopamine Role: Important neurotransmitter for motivation and pleasure.
  • Stimulant Effects: Substances like amphetamines and caffeine increase CNS activity.
  • Ovulation Prevention: Certain pills prevent follicle development, inhibiting ovulation.

Other Body Systems and Processes

  • Parasympathetic Nervous System: Active during digestion.
  • Sympathetic Nervous System: Active during stress or physical response to surroundings.
  • Physical Dependence: Substance use becomes necessary for maintaining a normal physiological state.
  • Psychological Dependence: Desire for substance-induced effects.
  • Intrauterine Devices (IUDs): Highly effective contraceptive methods.
  • Pepsin: Enzyme in gastric juice that digests proteins.
  • Pancreatic Amylase: Enzyme digesting starches.
  • Sexually Transmitted Diseases (STDs): Chlamydia and gonorrhea are examples caused by bacteria.
  • Blood Vessels (Capillaries): Exchange substances between blood and tissues.
  • Arteries: Transport oxygenated blood from heart to body organs.
  • Thermoregulation: Body's response to maintain temperature, often employing sweating.
  • Respiration (External): Gas exchange between alveoli and blood.
  • Respiration (Internal): Gas exchange between blood and body tissues.
  • Thyroid Gland Function: Regulates metabolism.
  • Essential Fatty Acids (Polyunsaturated Oils): Important for hormone production and cell membranes.
  • Complete Proteins: Provide all 20 essential amino acids.
  • Incomplete Proteins: Lack one or more essential amino acids.
  • Ovarian Cycle Phases: Stages in the reproductive cycle of human females.
  • AIDS: Acquired Immunodeficiency Syndrome
  • Nerve Pathway: Transmission of nerve impulses when a stimulus occurs.
  • Heart Anatomy: Structure of the heart.

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Human Body Care Exam Guide PDF

Description

Prepare for your upcoming exam on human body care and the functions of various systems. This guide covers key concepts including the gastrointestinal tract, the digestive processes, and the role of different organs. Master the essential functions of the respiratory and reproductive systems as well.

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