A&P Final Review - Hormones and Metabolism

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Questions and Answers

Which of the following structures is NOT directly involved in the process of urine formation?

  • Loop of Henle
  • Ureter (correct)
  • Collecting Duct
  • Glomerulus

Which hormone is primarily responsible for regulating the body's overall metabolic rate?

  • Thyroid Hormone (correct)
  • Insulin
  • Growth Hormone
  • Cortisol

During which phase of mitosis do sister chromatids separate and move towards opposite poles of the cell?

  • Anaphase (correct)
  • Metaphase
  • Telophase
  • Prophase

What is the primary function of the external urethral sphincter?

<p>Controls the flow of urine from the bladder to the urethra (A)</p> Signup and view all the answers

Which of the following best describes the primary function of the adrenal glands?

<p>Production of hormones that regulate stress response, metabolism, and electrolyte balance (A)</p> Signup and view all the answers

Which of the following best describes the role of the hypothalamus in the endocrine system?

<p>Receives and integrates signals from the nervous system to regulate hormone release from the pituitary gland (A)</p> Signup and view all the answers

What is the primary function of anabolism in the context of metabolism?

<p>Building complex molecules from simpler ones for growth and repair (C)</p> Signup and view all the answers

Which of the following best describes the role of ATP in cellular metabolism?

<p>Serving as the primary energy currency for cells (D)</p> Signup and view all the answers

What is the primary function of the lymphatic system?

<p>Maintain fluid balance and protect against infection (D)</p> Signup and view all the answers

What type of cells are primarily involved in the immune response?

<p>White blood cells (C)</p> Signup and view all the answers

What is the role of the tonsils in the lymphatic system?

<p>Trap and remove pathogens entering the throat (D)</p> Signup and view all the answers

What structure prevents food or liquids from entering the respiratory tract during swallowing?

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

What structure contains C-shaped cartilages to help keep the airway open?

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

What does sympathetic activation cause in the bronchioles?

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

What cells patrol the respiratory epithelium to remove debris?

<p>Alveolar macrophages (B)</p> Signup and view all the answers

What is a blockage of a pulmonary artery branch called?

<p>Pulmonary embolism (B)</p> Signup and view all the answers

What covers the inner surface of the chest wall?

<p>Parietal pleura (B)</p> Signup and view all the answers

Which chamber of the heart collects blood from the pulmonary circuit?

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

What is the serous membrane that surrounds the heart called?

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

What covers the outer surface of the heart?

<p>Visceral pericardium (epicardium) (D)</p> Signup and view all the answers

What is the pointed tip of the heart called?

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

What are the three layers of the heart wall?

<p>Epicardium, myocardium, endocardium (B)</p> Signup and view all the answers

What are specialized sites between cardiac muscle cells that allow electrical impulses to propagate?

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

What connects each atrium to its corresponding ventricle?

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

What delivers blood from the head, neck, and chest to the heart?

<p>Superior vena cava (D)</p> Signup and view all the answers

Which of the following is the pigment in red blood cells that binds and transports oxygen and carbon dioxide?

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

Which of the following is the innermost layer of a blood vessel?

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

Which of the following is NOT a function of the nervous system?

<p>Coordinates only voluntary responses of many organ systems (C)</p> Signup and view all the answers

Which type of impulse carries information from the peripheral nervous system to the central nervous system?

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

What is the thin, membranous sheath that increases the speed of the action potential down the axon called?

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

Which of the following ions is responsible for causing the neuron to become hyperpolarized?

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

A neuron communicates with a muscle cell at the ______.

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

Which of the following is the outermost meningeal layer?

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

Which of the following is NOT a function of the hypothalamus?

<p>Controls the endocrine cells of the adrenal medullae through sympathetic innervation (B)</p> Signup and view all the answers

Regulatory hormone secretion by the hypothalamus is regulated through ______.

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

Which of the following is a chemical messenger released in one tissue and transported by the blood to reach target cells in other tissues?

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

Which of the following hormones is found in the heart and is released when excessive pressure occurs within the atria?

<p>Atrial natriuretic peptide (B)</p> Signup and view all the answers

Which of the following hormones is responsible for stimulating spermatogenesis?

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

Which of the following hormones is responsible for the secretion of testosterone in males?

<p>LH (B)</p> Signup and view all the answers

At the point of puberty, males and females ______.

<p>All of the above (D)</p> Signup and view all the answers

Luteinizing hormone was once called ______ in males.

<p>Interstitial cell-stimulating hormone (C)</p> Signup and view all the answers

All of the following are examples of hormones EXCEPT ______.

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

Flashcards

Loop of Henle

A structure in the nephron of the kidney composed of a thin descending limb and a thick ascending limb.

Right Upper Quadrant

The quadrant of the abdomen where the liver is located.

Ureter

The tube that connects the kidney to the bladder.

Oxytocin

A hormone that helps control bleeding after childbirth.

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Metabolism

The process of energy transformation in the body.

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Anabolism

The primary function is to create new molecules for growth and repair.

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Catabolism

Responsible for breaking down fats, carbohydrates, and proteins.

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PMAT

The four phases of Mitosis: Prophase, Metaphase, Anaphase, Telophase.

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Types of Muscle Tissue

Skeletal, cardiac, and smooth are the three types of muscle tissue.

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Covalent Bond

A covalent bond is formed when two molecules share electrons to achieve stability.

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Lymph

Lymph is a fluid that contains white blood cells, circulating through lymphatic vessels.

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Spleen's Role

The spleen filters blood and helps fight infections in the lymphatic system.

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Immune Response Cells

White blood cells are primarily involved in the immune response.

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Lymph Nodes

Lymph nodes filter lymph and trap pathogens.

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T Cells Function

T cells attack infected cells as part of the immune system.

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Respiratory System Entry

Air normally enters the respiratory system through the pharynx and oral/nasal cavities.

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Goblet Cells

Goblet cells produce mucus to trap particulate matter in the respiratory tract.

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Alveoli Collapse Prevention

Surfactant is an oily secretion that prevents alveoli from collapsing.

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Pulmonary Embolism

Blockage of a pulmonary artery branch is called a pulmonary embolism.

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Heart Layers

The heart wall consists of three layers: epicardium, myocardium, and endocardium.

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Atrioventricular Valve

The atrioventricular valve connects each atrium to its corresponding ventricle.

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Platelets Function

Platelets contain enzymes essential for blood clotting.

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Hemoglobin

A protein in red blood cells that carries oxygen and carbon dioxide.

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Capillaries

The smallest blood vessels, allowing exchange of substances.

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Tunica interna

The innermost layer of a blood vessel.

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Vasoconstriction

Muscle contraction in arteries, reducing lumen diameter.

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Vasodilation

Relaxation of artery muscles, increasing lumen diameter.

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Afferent impulses

Nerve impulses that carry information to the central nervous system.

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Myelin

A sheath that insulates axons, speeding up action potentials.

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Hyperpolarization

When a neuron becomes less likely to activate, due to ion movement.

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Neuromuscular junction

The connection point between a neuron and a muscle cell.

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Glutamate

An excitatory neurotransmitter important for learning and memory.

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GABA

An inhibitory neurotransmitter that calms brain activity.

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Sympathetic nervous system

Part of the autonomic system that triggers 'fight or flight'.

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Parasympathetic nervous system

Part of the autonomic system that promotes 'rest and digest'.

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Antidiuretic Hormone (ADH)

Hormone that helps retain water in the body, reducing urine output.

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Luteinizing hormone (LH)

Hormone that stimulates testosterone secretion and ovulation.

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Study Notes

A&P Final Review - Squad Presentation Q&As

  • Loop of Henle Composition: Thin descending limb and thick ascending limb
  • Liver Quadrant: Right upper
  • Kidney-Bladder Connection: Ureter
  • External Urethral Sphincter: Voluntary muscle (True)
  • Digestive Tract Hormone Signaling: True. The digestive tract releases hormones signaling hunger and fullness.
  • Pituitary Gland Hormone Count: 9
  • Hormone Classification: Amino acid derivatives, peptide hormones, and lipid derivatives
  • Postpartum Bleeding Hormone: Oxytocin
  • Hypothalamus Endocrine Function: Sending signals to the pituitary gland to control hormone release.
  • Type 1 Diabetes: Pancreas is insulin resistant
  • Heart Secondary Hormone: Atrial Natriuretic peptide (ANP)
  • Calcitriol Deficiency in Kids: Rickets
  • Age-Related Female Hormone Decline: Menopause

Metabolism

  • Metabolism Definition: The process of energy transformation in the body
  • Metabolism Goal: Balance energy production and usage
  • Anabolism Function: Creating new molecules for growth and repair
  • Catabolism Breakdown: Fats, carbohydrates, and proteins
  • Liver Detoxification: True
  • Kidney Metabolic Role: Regulating fluid, pH, and electrolytes
  • ATP Capture from Catabolism: 40%
  • ATP Source in Cells: Cellular respiration (True)
  • Metabolic Disease: Diabetes
  • Mitochondrial Disease: Inability of mitochondria to generate energy

Cell Replication, Muscle Tissue, and Chemistry

  • PMAT (Mitosis): Prophase, Metaphase, Anaphase, Telophase - the four phases of mitosis where cell duplication occurs.
  • Atom Components: Proton, neutron, and electron
  • Muscle Tissue Types: Skeletal, cardiac, smooth
  • Covalent Bond: Two molecules sharing electrons to become stable
  • Molecule Definition: One or more elements bonded together

Lymphatic/ Immune System

  • Lymph: Fluid containing white blood cells that circulates through lymphatic vessels
  • Spleen Function: Filtering blood and fighting infections
  • Lymphatic System Primary Function: Maintaining fluid balance and protecting against infection
  • Immune Response Cells: White blood cells
  • Lymph Nodes Function: Filtering lymph and trapping pathogens
  • T-cell Function: Attacking infected cells
  • Tonsil Function: Trapping and removing pathogens entering the throat
  • Lymphatic Vessels Function: Collecting and transporting lymph
  • Lymphedema: Swelling due to lymph accumulation
  • Thymus Function: Maturation of T cells

Respiratory System

  • Air Entry Point: Through the nares (nostrils) into the nasal cavity and through the pharynx and oral cavity.
  • Shared Digestive/Respiratory Chamber: Pharynx
  • Mucus-Producing Cells: Goblet cells
  • Laryngeal Narrowing: Glottis
  • Food/Liquid Entry Prevention: Epiglottis
  • Cartilage Superior To Cricoid: Thyroid cartilage
  • Elastic Ligaments In Larynx: True vocal cords
  • Sound Production Structure: True vocal cords
  • Reflex Triggered by Laryngeal Contact: Gag reflex
  • Structure With C-Shaped Cartilage: Trachea
  • Bronchi Origin: Trachea
  • Sympathetic Bronchiole Effect: Bronchodilation
  • Parasympathetic Bronchiole Effect: Bronchoconstriction
  • Respiratory Bronchiole Destination: Alveolar ducts and sacs
  • Debris Removal Cells: Alveolar macrophages
  • Alveoli Collapsing Prevention: Surfactant
  • Pulmonary Artery Branch Blockage: Pulmonary embolism
  • Chest Wall Covering: Parietal pleura
  • Heart Covering: Pericardium
  • Heart Covering: Visceral pericardium

Circulatory System

  • Small Vessels Connecting Arteries and Veins: Capillaries
  • Blood Collection Chamber (Pulmonary): Left atrium
  • Heart Serous Membrane: Pericardium
  • Heart Outer Surface: Visceral pericardium (epicardium)
  • Heart Tip: Apex
  • Heart Wall Layers: Epicardium, myocardium, endocardium
  • Cardiac Muscle Cell Communication: Gap junctions
  • Valve Connecting Atria to Ventricles: Atrioventricular valve
  • Blood Delivery from Head/Neck/Chest: Superior vena cava
  • Atrioventricular Valve Support: Chordae tendineae
  • Ventricular Exit Valve Type: Semilunar valves
  • Bicuspid Valve Alternative Name: Mitral valve
  • Blood Exit Left Ventricle: Aortic semilunar valve and aorta
  • Plasma + Formed Elements: Whole blood
  • Blood Clotting Factors: Platelets
  • Blood Clot Framework: Fibrin
  • Oxygen/Carbon Dioxide Transport: Hemoglobin
  • Smallest Blood Vessels: Capillaries
  • Innermost Blood Vessel Layer: Endothelium
  • Arterial Muscle Contraction: Vasoconstriction; Relaxation - Vasodilation

Nervous System

  • Nervous System Functions: Integrating sensory information, coordinating voluntary responses from many organ systems. Monitoring the internal and external environments.
  • Peripheral to Central Impulses: Afferent
  • Action Potential Speeding Sheath: Myelin
  • Hyperpolarizing Ion: Potassium
  • Neuron-Muscle Communication Site: Neuromuscular junction
  • Outermost Meningial Layer: Dura mater
  • Neurotransmitters (Excitatory/Inhibitory): Glutamate (excitatory) and GABA (inhibitory)
  • Autonomic Nervous System Divisions: Sympathetic (flight-or-fight; Adrenergic receptors) and Parasympathetic (rest-and-digest; Cholinergic receptors)

Endocrine System

  • Hormone Definition: Chemical messenger transported by blood to target cells
  • Heart Hormone: Atrial natriuretic peptide
  • Posterior Pituitary Hormones & Actions: Antidiuretic Hormone (ADH) and oxytocin.
  • Spermatogenesis Stimulating Hormone: Follicle-stimulating hormone (FSH)
  • Testosterone Secretion Hormone: Luteinizing hormone (LH)
  • Puberty Changes: Increases in follicle-stimulating hormone (FSH) and luteinizing hormone (LH); appearance of secondary sex characteristics; acceleration of oogenesis in females.
  • LH Former Name: Interstitial cell-stimulating hormone (ICSH)
  • Mitosis vs. Meiosis: Mitosis for body cell growth & repair and meiosis for reproductive cell generation.

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