Human Digestive System Quiz

<p>Tonsils, small intestine, and large intestine (C)</p> Signup and view all the answers

<p>Submucosa (A)</p> Signup and view all the answers

<p>Skeletal muscle (B)</p> Signup and view all the answers

<p>Regulation of blood flow to the GI tract (A)</p> Signup and view all the answers

<p>Mixing and propelling food along the digestive tract (B)</p> Signup and view all the answers

<p>Enamel (A)</p> Signup and view all the answers

<p>Protects teeth from bacteria (A)</p> Signup and view all the answers

<p>To hold the tooth in place (A)</p> Signup and view all the answers

<p>Canines (B)</p> Signup and view all the answers

<p>To hold the nerves and blood vessels (D)</p> Signup and view all the answers

<p>20 (A)</p> Signup and view all the answers

<p>Cementum (C)</p> Signup and view all the answers

<p>Lingual gland (C)</p> Signup and view all the answers

<p>Parotid glands (B)</p> Signup and view all the answers

<p>Collagen (B)</p> Signup and view all the answers

<p>Activating salivary amylase (A)</p> Signup and view all the answers

<p>Mucus helps lubricate food and oral surfaces, facilitating swallowing (A)</p> Signup and view all the answers

<p>Stress (A)</p> Signup and view all the answers

<p>Preventing attachment of microbes to oral surfaces (C)</p> Signup and view all the answers

<p>They are involved in the breakdown of proteins (D)</p> Signup and view all the answers

<p>Lysozyme helps kill bacteria (C)</p> Signup and view all the answers

<p>The taste of food (C)</p> Signup and view all the answers

<p>Sympathetic (B)</p> Signup and view all the answers

<p>Bolus (D)</p> Signup and view all the answers

<p>Amylase (A)</p> Signup and view all the answers

<p>It is activated in the stomach and breaks down fats. (C)</p> Signup and view all the answers

<p>Stomach (D)</p> Signup and view all the answers

<p>Both B and C (C)</p> Signup and view all the answers

<p>Glossopharyngeal Nerve (IX) (D)</p> Signup and view all the answers

<p>Skeletal muscle (A)</p> Signup and view all the answers

<p>Voluntary stage (A)</p> Signup and view all the answers

<p>To prevent reflux of stomach contents (D)</p> Signup and view all the answers

<p>Pharyngeal stage (A)</p> Signup and view all the answers

<p>25 cm (D)</p> Signup and view all the answers

<p>Peristalsis (B)</p> Signup and view all the answers

<p>Inferior third (C)</p> Signup and view all the answers

<p>Peristalsis begins (B)</p> Signup and view all the answers

<p>Reduces peristalsis (B)</p> Signup and view all the answers

<p>Mastication, Deglutition, Digestion (C)</p> Signup and view all the answers

<p>Anchoring teeth to the socket walls (A)</p> Signup and view all the answers

<p>The outer layer of the GI tract (D)</p> Signup and view all the answers

<p>Hormonal regulation (B)</p> Signup and view all the answers

<p>Lines the wall of the abdominopelvic cavity (C)</p> Signup and view all the answers

<p>Provides local regulation of the GI tract (D)</p> Signup and view all the answers

<p>Dentin (D)</p> Signup and view all the answers

The inner lining of the GI tract, with epithelium, lamina propria, and muscularis mucosae.

A layer containing blood and lymphatic vessels, and the submucosal plexus of neurons.

Layer consisting of skeletal and smooth muscle, responsible for GI tract movements.

The outermost layer of the GI tract, providing protection and structure.

A component of the mucosa containing blood vessels and immune cells.

Thin layer of smooth muscle in the mucosa, aiding in absorption.

Hormone-producing cells located among the epithelial cells of the GI tract.

Immune tissue present in the lamina propria, protecting against disease.

A membrane that lines the abdominopelvic cavity and covers organs within it.

Lining of the abdominal cavity wall.

Covers organs within the abdominopelvic cavity.

Intrinsic nervous system of the GI tract with sensory neurons.

Part of the nervous system controlling involuntary functions, including the GI tract.

Mechanical digestion process involving chewing.

Calcified connective tissue forming the main body of a tooth.

A duct that carries saliva from the parotid gland to the mouth.

Salivary glands located in the floor of the mouth, which secrete both amylase and mucus.

Salivary glands located beneath the tongue, primarily secreting mucus.

Saliva consists of 99.5% water, enzymes, ions, and antimicrobial substances.

An enzyme in saliva that breaks down starches into simpler sugars.

Saliva aids in taste, digestion, waste removal, and mouth protection.

Salivation is regulated by the Autonomic Nervous System; parasympathetic promotes, sympathetic inhibits.

Dehydration leads to reduced saliva production, resulting in dry mouth and thirst sensation.

The hardest substance in the body, covering dentin, composed of calcium phosphate and carbonate.

A bonelike substance covering the root of a tooth, attaching it to the periodontal ligament.

The central part of a tooth filled with pulp, which contains blood vessels and nerves.

Also known as primary teeth, these are temporary teeth that erupt in early childhood.

The 32 teeth that replace deciduous teeth, starting around age 6 until adulthood.

Includes incisors for cutting, canines for tearing, and molars for crushing food.

Glands that secrete saliva to keep the mouth moist and assist in food breakdown.

The process regulated by neural input affecting saliva production involving sensory signals and nervous system divisions.

Part of the autonomic nervous system that stimulates salivation in response to food-related stimuli.

Part of the autonomic nervous system that inhibits salivation, often during stress responses.

The physical breakdown of food by chewing, resulting in a bolus that is easy to swallow.

The breakdown of food via enzymes, such as salivary amylase and lingual lipase, starting in the mouth.

The act of swallowing that moves food from the mouth to the stomach, involving saliva and mucus.

Three sections of the pharynx: nasopharynx (respiration only), oropharynx, and laryngopharynx (both for digestion and respiration).

A soft, flexible mass of chewed food mixed with saliva, ready to swallow.

A collapsible muscular tube about 25 cm long connecting the pharynx to the stomach.

Skeletal muscle sphincter regulating food movement from the pharynx into the esophagus.

Smooth muscle sphincter controlling food passage from the esophagus into the stomach.

An involuntary stage of swallowing where the bolus passes through the pharynx.

The final involuntary stage of swallowing where the bolus moves through the esophagus.

Coordinated muscle contractions that push food through the GI tract.