Which Is the First Portion of the Small Intestine

question 67

Multiple Choice

Which is the first portion of the small intestine?

• A)Duodenum
• B)Ileum
• C)Jejunum
• D)Cecum

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Definitions:

Vascular Cylinder

The central part of a root or stem containing the plant's vascular tissue, including xylem and phloem, responsible for water and nutrient transport.

Cortex

The outer layer of an organ or structure, such as the cerebral cortex of the brain or the cortex of the kidney.

Epidermis

The outer layer of cells covering an organism, particularly the surface layer of skin.

Root Hairs

Thin, hair-like extensions from a root's surface that increase the surface area for water and nutrient absorption from the soil.