Untitled Flashcards Set

Absolutely! A multiple-choice exam is an excellent way to test your recall and understanding of key concepts. Based on your BIO 202L Midterm Exam Review Guide, I've created a multiple-choice practice exam for you. This exam covers the Endocrine, Blood, Lymphatic, and Heart systems.

BIO 202L Midterm Exam: Multiple Choice

Instructions: Choose the best answer for each question. Good luck!

Part 1: Endocrine System

Which of the following hormones is primarily responsible for regulating the body's metabolic rate?

A) Insulin

B) Glucagon

C) Thyroid hormones (T3 and T4)

D) Cortisol

A patient experiences excessive urination and thirst, and their blood tests show high blood glucose levels. Which endocrine gland is most likely dysfunctional?

A) Adrenal gland

B) Thyroid gland

C) Pancreas

D) Pituitary gland

Which of the following is an example of a positive feedback mechanism in the endocrine system?

A) Regulation of blood glucose by insulin and glucagon

B) Regulation of thyroid hormone release by TSH

C) Oxytocin release during childbirth

D) Regulation of calcium levels by parathyroid hormone

The adrenal cortex is known for producing hormones that regulate:

A) Blood glucose and stress response

B) Calcium and phosphate levels

C) Sleep-wake cycles

D) Growth and development

Antidiuretic Hormone (ADH) primarily functions to:

A) Increase blood pressure by vasoconstriction

B) Promote water reabsorption in the kidneys

C) Stimulate uterine contractions

D) Regulate metabolism

Part 2: Blood System

Which component of blood is primarily responsible for oxygen transport?

A) Platelets

B) Plasma

C) White blood cells

D) Red blood cells

A person with Type AB blood can receive blood from which blood type(s)?

A) Only Type AB

B) Only Type O

C) Types A, B, AB, and O

D) Only Type A and Type B

Which of the following is NOT typically a component measured in a Complete Blood Count (CBC)?

A) Hemoglobin concentration

B) White blood cell differential

C) Blood glucose levels

D) Platelet count

Which type of white blood cell is most numerous and primarily functions in phagocytizing bacteria?

A) Lymphocytes

B) Eosinophils

C) Basophils

D) Neutrophils

The protein responsible for forming the meshwork of a blood clot is:

A) Albumin

B) Fibrinogen

C) Fibrin

D) Globulin

Part 3: Lymphatic System

Which of the following is the largest lymphatic organ?

A) Thymus

B) Spleen

C) Tonsils

D) Lymph nodes

Where do T-cells primarily mature?

A) Bone marrow

B) Spleen

C) Thymus

D) Lymph nodes

Which type of tonsils are located at the posterior aspect of the oral cavity?

A) Pharyngeal tonsils

B) Palatine tonsils

C) Lingual tonsils

D) Tubal tonsils

Lymphatic vessels that carry lymph into a lymph node are called:

A) Efferent vessels

B) Afferent vessels

C) Collecting ducts

D) Lymphatic trunks

Part 4: Heart System

Which layer of the heart wall is primarily composed of cardiac muscle and is responsible for the heart's pumping action?

A) Epicardium

B) Endocardium

C) Myocardium

D) Pericardium

Deoxygenated blood enters the right atrium from which major blood vessels?

A) Pulmonary veins

B) Aorta and pulmonary artery

C) Superior and inferior vena cavae

D) Coronary arteries

The P wave on an electrocardiogram (ECG) represents:

A) Ventricular depolarization

B) Atrial repolarization

C) Atrial depolarization

D) Ventricular repolarization

Which structure prevents the backflow of blood from the left ventricle into the left atrium?

A) Tricuspid valve

B) Pulmonary valve

C) Aortic valve

D) Mitral (bicuspid) valve

The apex of the heart is typically located:

A) Superiorly, pointing towards the right shoulder

B) Inferiorly, pointing towards the left hip

C) Posteriorly, near the vertebral column

D) Anteriorly, beneath the sternum

Which type of blood vessel is characterized by having very thin walls, often only one cell thick, to facilitate gas and nutrient exchange?

A) Arteries

B) Arterioles

C) Capillaries

D) Veins

Answer Key

C

C

C

A

B

D

C

C

D

C

B

C

B

B

C

C

C

D

B

C

Next Moves: Review your answers and see how you did! If you missed any, go back to your notes or textbook to reinforce those concepts. Let me know if you'd like to discuss any specific questions or topics in more detail!