Question 1

Epinephrine Increases heart rate by binding to

Accepted Answer

A)  α1receptors 
B)  α2receptors 
C)  β1receptors 
D)  β2receptors 
E)  β3receptors 
A)  α1receptors 
B)  α2receptors 
C)  β1receptors 
D)  β2receptors 
E)  β3receptors C

Question 2

The enzyme(s) responsible for catecholam ine degradation is

Accepted Answer

A)  MAO (mono amino oxidase) 
B)  PNMT (phenylethanolamine N methyl transferase) 
C)  COMT (catecholamine -O-methyl transferase) 
D)  DOPA decarboxylase 
E)  Both A and C are correct 
A)  MAO (mono amino oxidase) 
B)  PNMT (phenylethanolamine N methyl transferase) 
C)  COMT (catecholamine -O-methyl transferase) 
D)  DOPA decarboxylase 
E)  Both A and C are correct E

Question 3

W hich of the following hormones does NOT increase plasma glucose?

Accepted Answer

A)  Cortisol 
B)  Glucagon 
C)  GH 
D)  Epinephrine 
E)  Insulin 
A)  Cortisol 
B)  Glucagon 
C)  GH 
D)  Epinephrine 
E)  Insulin E

Question 4

The effect of epinephrine on glucose m etabolism is

Accepted Answer

A)  Decreased gluconeogenesis 
B)  Increased liver glycogenolysis 
C)  Decreased insulin secretion 
D)  Decreased muscle glycogenolysis 
E)  Decreased plasma glucose 
A)  Decreased gluconeogenesis 
B)  Increased liver glycogenolysis 
C)  Decreased insulin secretion 
D)  Decreased muscle glycogenolysis 
E)  Decreased plasma glucose

Question 5

Catecholamines are released systemically from

Accepted Answer

A)  The adrenal medulla 
B)  Preganglionic parasym pathetic nerve terminals 
C)  Preganglionic sym pathetic nerve terminals 
D)  The hypothalamus 
E)  The kidney 
A)  The adrenal medulla 
B)  Preganglionic parasym pathetic nerve terminals 
C)  Preganglionic sym pathetic nerve terminals 
D)  The hypothalamus 
E)  The kidney

Question 6

Stimulation of epinephrine secretion from the medulla comes from

Accepted Answer

A)  Post-ganglionic parasympathetic nerves originating in the dorsal motor nucleus 
B)  Pre-ganglionic parasympathetic nerves originating in the dorsal motor nucleus 
C)  Post-ganglionic sympathetic nerves originating in the thoracic spinal cord 
D)  Pre-ganglionic sympathetic nerves originating in the thoracic spinal cord 
E)  Pre-ganglionic sympathetic nerves originating in the lumbar spinal cord 
A)  Post-ganglionic parasympathetic nerves originating in the dorsal motor nucleus 
B)  Pre-ganglionic parasympathetic nerves originating in the dorsal motor nucleus 
C)  Post-ganglionic sympathetic nerves originating in the thoracic spinal cord 
D)  Pre-ganglionic sympathetic nerves originating in the thoracic spinal cord 
E)  Pre-ganglionic sympathetic nerves originating in the lumbar spinal cord

Question 7

Catecholamines are synthesized from

Accepted Answer

A)  Tryptophan 
B)  Serotonin 
C)  Glutamine 
D)  Tyrosine 
E)  Aspartic acid 
A)  Tryptophan 
B)  Serotonin 
C)  Glutamine 
D)  Tyrosine 
E)  Aspartic acid

Question 8

The effects of circulating catecholamines include

Accepted Answer

A)  Increased heart rate 
B)  Increased liver glycogenolysis 
C)  Dilation of the pupils 
D)  Constriction of arterioles in the kidney 
E)  All of the above 
A)  Increased heart rate 
B)  Increased liver glycogenolysis 
C)  Dilation of the pupils 
D)  Constriction of arterioles in the kidney 
E)  All of the above

Question 9

Which of the following hormones increases liver glycogen stores?

Accepted Answer

A)  Cortisol 
B)  Glucagon 
C)  GH 
D)  Epinephrine 
E)  Thyroxine 
A)  Cortisol 
B)  Glucagon 
C)  GH 
D)  Epinephrine 
E)  Thyroxine

Question 10

Epinephrine

Accepted Answer

A) Dilates bronchioles through α1 receptors 
B)  Constricts bronchioles through α1 receptors 
C)  Dilates bronchioles through β2 receptors 
D)  Constricts bronchioles through β2 receptors 
E)  Dilates bronchioles through α2 receptors 
A) Dilates bronchioles through α1 receptors 
B)  Constricts bronchioles through α1 receptors 
C)  Dilates bronchioles through β2 receptors 
D)  Constricts bronchioles through β2 receptors 
E)  Dilates bronchioles through α2 receptors

Question 11

The “flight or fight” response includes all of the following EXCEPT

Accepted Answer

A)  Increased heart rate 
B)  Dilation of the bronchioles 
C)  Increased lipolysis 
D)  Vasoconstriction 
E)  Constriction of the pupils 
A)  Increased heart rate 
B)  Dilation of the bronchioles 
C)  Increased lipolysis 
D)  Vasoconstriction 
E)  Constriction of the pupils

Exam 66: The Adrenal Medulla

Epinephrine Increases heart rate by binding to

The enzyme(s) responsible for catecholam ine degradation is

W hich of the following hormones does NOT increase plasma glucose?

The effect of epinephrine on glucose m etabolism is

Catecholamines are released systemically from

Stimulation of epinephrine secretion from the medulla comes from

Catecholamines are synthesized from

The effects of circulating catecholamines include

Which of the following hormones increases liver glycogen stores?

Epinephrine

The “flight or fight” response includes all of the following EXCEPT

Physical Foundations Ii: Electrical Force Potential Capacitance and Current

Chemical Foundations I: Chemical Energy and Intermolecular Forces

Chemical Foundations Ii: Concentration and Kinetics

Diffusion

Electrochemical Potential and Free Energy

Cell Structure

Dna and Protein Synthesis

Protein Structure

Biological Membranes

Passive Transport and Facilitated Diffusion

Active Transport: Pumps and Exchangers

Osmosis and Osmotic Pressure

Cell Signaling

ATP Production I: Glycolysis

Atp Production Ii: Tca Cycle and Oxidative Phosphorylation

Atp Production Iii: Fatty Acid Oxidation and Amino Acid Oxidation

Origin of the Membrane Potential

The Action Potential

Propagation of the Action Potential

Skeletal Muscle Mechanics

Contractile Mechanisms in Skeletal Muscle

Neuromuscular Junction and Ec Coupling

Muscle Energetics Fatigue and Training

Smooth Muscle

Organization of the Nervous System

Cells Synapses and Neurotransmitters

Cutaneous Sensory Systems

Spinal Reflexes

Balance and Control of Movement

the Chemical Senses

Hearing

Vision

Autonomic Nervous System

Overview of the Cv System and Blood

Plasma and Red Blood Cells

White Blood Cells and Inflammation

The Heart As a Pump

Cellular Basis of Cardiac Contractility

the Cardiac Function Curve

Vascular Function: Hemodynamics

Microcirculation and Solute Exchange

Regulation of Perfusion

Integration of Cardiac Output and Venous Return

Regulation of Arterial Pressure

Mechanics of Breathing

Lung Volumes and Airway Resistance

Gas Exchange in the Lung

Oxygen and Carbon Dioxide Transport

Acid Base Physiology I Bicarbonate Buffers and Respiratory Compensation

Control of Ventilation

Anatomy and Renal Overview

Glomerular Filtration

Tubular Reabsorption and Secretion

Concentration and Dilution of Urine

Mouth and Esophagus

The Stomach

Intestinal and Colonic Motility

Pancreatic and Biliary Secretion

Digestion and Absorption of the Macronutrients

Energy Balance and Regulation of Food Intake

General Principles of Endocrinology

Hypothalamus and Pituitary Gland

The Thyroid Gland

The Endocrine Pancreas

The Adrenal Cortex

The Calcitropic Hormones

Calcium and Phosphorus Homeostasis Ii

Female Reproductive Physiology