Question 1

Refer to the diagram of the endocrine organs in the human body (Image 1). Which organ is responsible for regulating blood calcium levels, and what is the primary hormone it secretes for this function?

Accepted Answer

Parathyroid glands; parathyroid hormone (PTH)

Question 2

In the hypothalamic-pituitary-thyroid axis (Image 2), what is hormone 'B' and what is its primary effect?

Accepted Answer

Thyroid-stimulating hormone (TSH); stimulates the thyroid gland to release thyroid hormones

Question 3

The individual in Image 3 displays a visible swelling in the neck region. Based on your knowledge of endocrine disorders, what is the most likely cause of this condition?

Accepted Answer

Iodine deficiency leading to goiter

Question 4

After centrifuging a blood sample (Image 4), which layer contains the majority of leukocytes and platelets, and what is this layer called?

Accepted Answer

Layer B; buffy coat

Question 5

In the blood smear (Image 5), which cell type is labeled 'A' and what is its primary function?

Accepted Answer

Neutrophil; phagocytosis of bacteria

Question 6

The cell shown in Image 6 is characteristic of which blood disorder, and what is the underlying molecular cause?

Accepted Answer

Sickle-cell anemia; a single amino acid substitution in the beta chain of hemoglobin

Question 7

Refer to the leukocyte images (Image 7). Which cell type is most likely to increase during a parasitic infection, and what is its identifying feature?

Accepted Answer

Eosinophil; bilobed nucleus and red cytoplasmic granules

Question 8

The sequence of events shown in Image 8 represents hemostasis. What is the correct order of these steps?

Accepted Answer

Vascular spasm, platelet plug formation, coagulation

Question 9

A blood sample is tested with anti-A and anti-B sera (Image 9). Agglutination occurs with anti-A but not with anti-B. What is the blood type?

Accepted Answer

Type A

Question 10

A blood sample is tested with anti-A and anti-B sera (Image 10). Agglutination occurs with anti-B but not with anti-A. What is the blood type?

Accepted Answer

Type B

Question 11

A blood sample is tested with anti-A and anti-B sera (Image 11). Agglutination occurs with both anti-A and anti-B. What is the blood type?

Accepted Answer

Type AB

Question 12

A blood sample is tested with anti-A and anti-B sera (Image 12). No agglutination occurs with either. What is the blood type?

Accepted Answer

Type O

Question 13

Refer to the graph of primary and secondary immune responses (Image 13). Why is the secondary response to antigen A both faster and greater in magnitude than the primary response?

Accepted Answer

Memory B cells are present and respond rapidly upon re-exposure

Question 14

In the antibody structure diagram (Image 14), which region is responsible for antigen binding, and what is the significance of this region?

Accepted Answer

Region A; it determines the antibody's specificity for a particular antigen

Endocrine System and Blood: ANP Study Guidance with Relevant Images

Study Guide - Practice Questions

Study Guide - Flashcards