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BYU CELL 220 EXAM 3 NEWEST 2026 ACTUAL EXAM WITH
COMPLETE QUESTIONS AND CORRECT DETAILED ANSWERS (100%
VERIFIED ANSWERS) |ALREADY GRADED A+| ||PROFESSOR
VERIFIED||
What is the submucosa of the GI tract? - ANSWER-Vascular,
Innervated connective tissue surrounding the mucosa
What is the muscularis of the GI tract? - ANSWER-The inner
circular and outer longitudinal layers of smooth muscle
What is the serosa of the GI tract? - ANSWER-Visceral
peritoneum
Instead of a serosa, some digestive organs have a ___. -
ANSWER-Adventitia
The lips and oral cavity are lined by what type of epithelial cells? -
ANSWER-Non-keratinized stratified squamous epithelium
What is the first site of mechanical and chemical digestion? -
ANSWER-The oral cavity
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What is the lingual frenulum? - ANSWER-A small fold of mucous
membrane extending from the floor of the mouth to the midline of
the underside of the tongue
What are the three salivary glands? - ANSWER-Sublingual,
parotid, and submandibular
The submandibular gland is responsible for what percentage of
saliva production? - ANSWER-60-70%
The parotid gland is responsible for what percentage of saliva
production? - ANSWER-25-30%
The sublingual gland is responsible for what percentage of saliva
production? - ANSWER-3-5%
The salivary glands are Innervates by which nervous system? -
ANSWER-The autonomic nervous system
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How much saliva is produced per day? - ANSWER-1.5 Liters
What is the purpose of saliva? - ANSWER-Wets and binds food
together. Cleans and lubricates the oral cavity. Kills harmful
microorganisms.
The enzymes in saliva begin chemical digestion of what? -
ANSWER-Starches
The average cardiac output of the heart is... - ANSWER-5.25
Liters per minute
The heart beats about ___ times per minute - ANSWER-75
The heart functions as a dual pump for which two circuits? -
ANSWER-Pulmonary and Systemic
Where is the heart located? - ANSWER-Within the Mediastinum.
On the diaphragm. Posterior to the Sternum.
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The base of the heart is comprised of the... - ANSWER-Posterior
and superior surfaces of the heart
The apex points to the... - ANSWER-Left Hip
The apex is comprised of the... - ANSWER-Anterior and inferior
surfaces of the heart
The pericardium is made up of ___ layers - ANSWER-Three
The outermost layer of the pericardium is the... - ANSWER-
Fibrous Pericardium
Just deep to the fibrous pericardium is the... - ANSWER-Parietal
layer of the Serous Pericardium
What is found between the two layers of the serous pericardium?
- ANSWER-The Pericardial Cavity
BYU CELL 220 EXAM 3 NEWEST 2026 ACTUAL EXAM WITH
COMPLETE QUESTIONS AND CORRECT DETAILED ANSWERS (100%
VERIFIED ANSWERS) |ALREADY GRADED A+| ||PROFESSOR
VERIFIED||
What is the submucosa of the GI tract? - ANSWER-Vascular,
Innervated connective tissue surrounding the mucosa
What is the muscularis of the GI tract? - ANSWER-The inner
circular and outer longitudinal layers of smooth muscle
What is the serosa of the GI tract? - ANSWER-Visceral
peritoneum
Instead of a serosa, some digestive organs have a ___. -
ANSWER-Adventitia
The lips and oral cavity are lined by what type of epithelial cells? -
ANSWER-Non-keratinized stratified squamous epithelium
What is the first site of mechanical and chemical digestion? -
ANSWER-The oral cavity
,2|Page
What is the lingual frenulum? - ANSWER-A small fold of mucous
membrane extending from the floor of the mouth to the midline of
the underside of the tongue
What are the three salivary glands? - ANSWER-Sublingual,
parotid, and submandibular
The submandibular gland is responsible for what percentage of
saliva production? - ANSWER-60-70%
The parotid gland is responsible for what percentage of saliva
production? - ANSWER-25-30%
The sublingual gland is responsible for what percentage of saliva
production? - ANSWER-3-5%
The salivary glands are Innervates by which nervous system? -
ANSWER-The autonomic nervous system
,3|Page
How much saliva is produced per day? - ANSWER-1.5 Liters
What is the purpose of saliva? - ANSWER-Wets and binds food
together. Cleans and lubricates the oral cavity. Kills harmful
microorganisms.
The enzymes in saliva begin chemical digestion of what? -
ANSWER-Starches
The average cardiac output of the heart is... - ANSWER-5.25
Liters per minute
The heart beats about ___ times per minute - ANSWER-75
The heart functions as a dual pump for which two circuits? -
ANSWER-Pulmonary and Systemic
Where is the heart located? - ANSWER-Within the Mediastinum.
On the diaphragm. Posterior to the Sternum.
, 4|Page
The base of the heart is comprised of the... - ANSWER-Posterior
and superior surfaces of the heart
The apex points to the... - ANSWER-Left Hip
The apex is comprised of the... - ANSWER-Anterior and inferior
surfaces of the heart
The pericardium is made up of ___ layers - ANSWER-Three
The outermost layer of the pericardium is the... - ANSWER-
Fibrous Pericardium
Just deep to the fibrous pericardium is the... - ANSWER-Parietal
layer of the Serous Pericardium
What is found between the two layers of the serous pericardium?
- ANSWER-The Pericardial Cavity
