Try our free nursing testbanks today. click here to join
Teas 7 test, Hesi A2 and Nursing prep
Nursingprepexams LEARN. PREPARE. EXCEL!
  • Home
  • Nursing
  • TEAS
  • HESI
  • Blog
Start Studying Now

Take full exam for free

Which of the following has an abundance of lymphoid tissue in the mucosa and submucosa?

A.

Small intestine

B.

Stomach

C.

Large intestine

D.

Esophagus

Answer and Explanation

The Correct Answer is A

A. Small intestine, particularly the ileum, contains Peyer's patches, which are abundant lymphoid tissues in the mucosa and submucosa. These structures are part of the immune system, protecting the body from pathogens in the digestive tract. 

 

B. Stomach: While the stomach has some lymphoid tissue, it does not have as much as the small intestine, specifically the Peyer's patches.

 

C. Large intestine has lymphoid nodules, but it does not contain as much lymphoid tissue as the small intestine. 

 

D. Esophagus has very little lymphoid tissue compared to the small intestine, as its primary function is to transport food rather than participate in immune defense. 


Free Nursing Test Bank

  1. Free Pharmacology Quiz 1
  2. Free Medical-Surgical Quiz 2
  3. Free Fundamentals Quiz 3
  4. Free Maternal-Newborn Quiz 4
  5. Free Anatomy and Physiology Quiz 5
  6. Free Obstetrics and Pediatrics Quiz 6
  7. Free Fluid and Electrolytes Quiz 7
  8. Free Community Health Quiz 8
  9. Free Promoting Health across the Lifespan Quiz 9
  10. Free Multidimensional Care Quiz 10
Take full exam free

View Related questions

Correct Answer is B

Explanation

A. Surfactant reduces surface tension in the alveoli, aiding in lung expansion, but it does not directly stimulate breathing.

B. CO2 accumulating in the infant's blood: The accumulation of CO2 in the infant's blood is a significant stimulus for the first breath after birth. High levels of CO2 trigger the infant's respiratory centers to start breathing.

C. Prostaglandins are involved in labor and delivery but do not directly stimulate breathing in the newborn.

D. An increased O2 level in the infant's new environment: Increased O2 levels do not directly stimulate breathing; rather, the accumulation of CO2 is the primary stimulus.

Correct Answer is A

Explanation

A. Na+: Sodium (Na+) is the principal cation in the extracellular fluid (ECF), which includes interstitial fluid and blood plasma.

B. Ca2+: Calcium (Ca2+) is important in various bodily functions but is not the principal cation in the ECF. Sodium is more predominant in ECF.

C. Cl-: Chloride (Cl-) is the principal anion in the ECF, not a cation. Sodium is the principal cation.

D. K+: Potassium (K+) is the principal cation in the intracellular fluid (ICF), not the ECF. Sodium is the principal cation in the ECF.

Quick Links

Nursing Teas Hesi Blog

Resources

Nursing Test banks Teas Prep Hesi Prep Nursingprepexams Blogs
© Nursingprepexams.com @ 2019 -2025, All Right Reserved.