These are all vessels of the lower limb except
the popliteal vein
the medial plantar artery
the posterior tibial artery
the fibular vein
the axillary vein
The Correct Answer is E
A. The popliteal vein: The popliteal vein is a major vein of the lower limb, located behind the knee, and drains blood from the leg into the femoral vein.
B. The medial plantar artery: The medial plantar artery is a branch of the posterior tibial artery that supplies blood to the plantar aspect of the foot, making it part of the lower limb vasculature.
C. The posterior tibial artery: The posterior tibial artery runs along the posterior compartment of the leg and supplies the lower leg and foot, classifying it as a lower limb vessel.
D. The fibular vein: The fibular (peroneal) vein accompanies the fibular artery in the lateral leg and drains the lower leg, making it a vessel of the lower limb.
E. The axillary vein: The axillary vein is located in the upper limb, draining blood from the arm into the subclavian vein. It is not part of the lower limb vasculature.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Antigenic:“Antigenic” is not a classification of T cells. It describes a property of a substance that can trigger an immune response, not a type of T lymphocyte.
B. Cytotoxic:Cytotoxic T cells (CD8+) directly kill infected or abnormal cells. They are a major type of T cell responsible for cell-mediated immunity and defense against viruses and cancer cells.
C. Regulatory:Regulatory T cells (Tregs) modulate the immune response by suppressing excessive or inappropriate activation. They help maintain immune tolerance and prevent autoimmune reactions.
D. Helper:Helper T cells (CD4+) assist other immune cells by releasing cytokines that stimulate B cells, cytotoxic T cells, and macrophages. They are essential for orchestrating the adaptive immune response.
Correct Answer is A
Explanation
A. Thymus:The thymus is largest and most active during childhood, producing T lymphocytes and establishing adaptive immunity. With age, it gradually atrophies and is replaced by fatty tissue, leading to reduced production of new T cells in older adults.
B. Appendix:The appendix contains lymphoid tissue, but it does not undergo significant atrophy with age. Its lymphoid function persists, albeit reduced, and it remains structurally present throughout life.
C. Spleen:The spleen retains its structure and immune functions throughout life. Although some immune efficiency may decline with age, it does not undergo true atrophy like the thymus.
D. Tonsils:Tonsils may undergo partial shrinkage after adolescence, but this is variable, and they do not exhibit the pronounced age-related atrophy characteristic of the thymus.
E. Lymph nodes:Lymph nodes may decrease slightly in size with aging, but they generally remain functional throughout life and do not atrophy to the same extent as the thymus.
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