Large clusters of lymph nodes are NOT found in the
inguinal
axillary
cervical
popliteal
The Correct Answer is D
A. Inguinal: The inguinal region contains large clusters of lymph nodes that drain the lower limbs, external genitalia, and lower abdominal wall. These nodes are prominent and clinically significant.
B. Axillary: Axillary lymph nodes form large clusters in the armpits, draining the upper limbs, chest, and breast tissue. They are important sites for immune surveillance and clinical examination.
C. Cervical: Cervical lymph nodes are clustered in the neck, filtering lymph from the head and neck region. They are easily palpable and play a key role in detecting infections.
D. Popliteal: The popliteal region behind the knee contains only small, sparse lymph nodes. It does not have large clusters of nodes like the inguinal, axillary, or cervical regions.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. All contain valves to prevent the backflow of blood:Valves are present in veins, not arteries. Arteries rely on high pressure generated by the heart to maintain forward blood flow, so valves are generally unnecessary.
B. All carry blood away from the heart:By definition, arteries transport blood away from the heart, regardless of whether the blood is oxygenated or deoxygenated. Pulmonary arteries, for example, carry deoxygenated blood to the lungs, while systemic arteries carry oxygenated blood to tissues.
C. All carry oxygenated blood to the heart:Arteries do not carry blood to the heart; veins do. Additionally, some arteries (like the pulmonary arteries) carry deoxygenated blood away from the heart, so oxygen content is not a defining feature.
D. Only large arteries are lined with endothelium:All arteries, regardless of size, have an endothelial lining (tunica intima). This layer is essential for maintaining a smooth blood flow and regulating vascular functions.
Correct Answer is C
Explanation
A. Increased risk of developing atherosclerosis:Excess adipose tissue is associated with dyslipidemia and inflammation, which promote the formation of arterial plaques. This increases the risk of atherosclerosis and cardiovascular disease.
B. Higher peripheral resistance and higher blood pressure:Additional adipose tissue increases the total vascular network and tissue demand, which raises peripheral resistance. This elevated resistance contributes to higher blood pressure over time.
C. Lower heart rate and reduced blood flow:A sudden gain in adipose tissue does not typically lower heart rate. In fact, increased tissue mass often requires the heart to pump more blood, which may elevate cardiac output and maintain or even increase heart rate. Reduced blood flow is not expected.
D. Increased angiogenesis and higher peripheral resistance:The body responds to expanding adipose tissue by forming new blood vessels (angiogenesis) to supply the tissue with nutrients. This can also increase peripheral resistance due to the larger vascular network.
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