Chapter 2-Nutrition

How many organ systems are in the human body?

11

Approximately what percentage of a cell's mass is comprised of water?

70

Specialized cells on the pancreas, which secrete insulin, glucagon, and somatostatin are referred to as the __________.

Islets of Langerhans

Which of the following is a pulpy, acidic fluid passing from the stomach to the small intestine, consisting of gastric juices and partially digested food?

chyme

Epithelial cells can be classified as squamous, cuboidal, or _________.

columnar

Tendons and ligaments are made of __________.

dense connective tissue

The small intestine is divided into three sections, in the following order ____________.

duodenum, jejunum, ileum

Which organ system works closely with the nervous system to produce, release, and regulate hormones?

endocrine system

A thin polar membrane made of pairs of lipid molecules, is known as a(n) ___________.

lipid bilayer

The three types of muscle found in the human body are cardiac muscle, skeletal muscle, and _________.

smooth muscle