The respiratory membrane is composed of fused basement membrane of the capillary walls and
Type I pneumocytes
Respiratory bronchioles
Segmental (tertiary) bronchi
Type II pneumocytes
The Correct Answer is A
A. Type I pneumocytes: The respiratory membrane is formed by alveolar Type I (squamous) pneumocytes, their basement membrane fused with the capillary basement membrane, and capillary endothelial cells -allowing efficient gas diffusion.
B. Respiratory bronchioles: Respiratory bronchioles are airway structures leading to alveoli but are not the cellular layer that composes the thin respiratory membrane.
C. Segmental (tertiary) bronchi: These are larger conducting airways far upstream from the alveolar gas-exchange surface.
D. Type II pneumocytes: Type II cells produce surfactant and are present in alveoli, but the thin gas-exchange surface is primarily Type I pneumocytes (Type II are cuboidal and thicker).
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Eupnea:Eupnea means normal, unlabored breathing (normal respiratory rate and depth) -not difficult breathing.
B. Dyspnea: Dyspnea describes difficult or labored breathing (shortness of breath).
C. Hyperpnea: Hyperpnea means increased depth and/or rate of breathing (e.g., during exercise), not necessarily “difficult” or labored breathing.
D. Apnea: Apnea means a temporary absence of breathing (no breathing), the opposite of labored breathing.
Correct Answer is A
Explanation
A. Pap Smear:The Papanicolaou (Pap) smear screens cervical cells for precancerous changes (dysplasia) and is the standard test for early detection of cervical cancer.
B. BRCA test: BRCA genetic tests assess hereditary breast/ovarian cancer risk (BRCA1/2), not cervical cancer screening.
C. ELISA test: ELISA is a lab technique for detecting antibodies/antigens (used in many contexts, e.g., HIV testing) but is not a routine screening test for cervical cancer.
D. Mammogram:A mammogram is an imaging test used to screen for breast cancer, not cervical cancer.
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