A&P III midterm lecture

The mechanical and chemical receptors that control digestive activity are located ________.

in the walls of the tract organs

Which of the following cannot be sensed by the chemoreceptors?

stretch

Which of the following is not part of the intrinsic nerve controls of the GI system?

CNS

Which of the following is not part of the alimentary tract?

liver

Nutrient-rich venous blood from the digestive viscera is collected by the ________.

hepatic portal vein

When we ingest large molecules such as lipids, carbohydrates, and proteins, they must undergo reactions whereby enzymes split these molecules. This series of reactions is called ________.

chemical digestion

From the esophagus to the anal canal, the walls of every organ of the alimentary canal are made up of the same four basic layers. Arrange them in order from the lumen.

mucosa, submucosa, muscularis externa, and serosa

The sheets of peritoneal membrane that hold the digestive tract in place are called ________.

mesenteries

The mouth is lined with _____________ epithelium.

stratified squamous

Which of the following is true concerning the number and type of permanent teeth?

There are 32 permanent teeth, and the wisdom teeth are the last to emerge.

Tooth structure includes ________.

a thin periodontal ligament that holds the tooth in place

Which of the following participates the formation of gomphosis?

periodontal ligament

The hardest substance in the body is _____________.

enamel

The wall of the mid portion of the esophagus is composed of _____ muscle.

mixture of skeletal and smooth

Which of the following is not true of saliva?

contains enzymes that begin the breakdown of proteins

Salivary amylase

digests starch

Peristaltic waves are ________.

waves of muscular contractions that propel contents from one point to another

Surgical cutting of the lingual frenulum would occur in which part of the body?

oral cavity

What structure closes the entrance into the nasopharynx during deglutition?

soft palate

The position of the tongues is controlled by the ______ muscle of the tongue

extrinsic

On the image below, arrow 4 marks

intraperitoneal organ

On the image below, arrow 6 marks 

parietal peritoneum

On the image below, arrow 2 marks

dentin

Which of the following can be found in the pulp?

connective tissue, vessels, nerves

Odontoblasts secrete ____.

dentin