Shared Flashcard Set

Details

Digestive Anatomy
Oral Cavity, Oesophagus, Simple Stomach, Compound Stomach, Intestines- Histology, Structure, Function
19
Anatomy
Undergraduate 2
11/01/2009

Additional Anatomy Flashcards

 


 

Cards

Term
The four basic layers of digestive tract?
Definition

1. Mucosa

2. Submucosa

3. Muscularis Externa

4. Serosa/Adventitia

Term
What are the sublayers of the mucosa?
Definition

1. Stratified squamous epithelium

2. Lamina propria (connective tissue and mucosal glands)

3. Muscularis Mucosa (smooth muscle. Not always present)

Term
Submucosa
Definition

Loose connective tissue

Blood vessels

Lymphatics

Submucosal Intrinsic Glands

Meissner's Plexus

Term
Muscularis Externa
Definition

Commonly

Inner circular

Outer longitudinal

 

Stomach

Inner oblique

Middle circular

Outer longitudinal

 

 

Term
Serosa
Definition
Outermost smooth surrounding layer. Only applies to the cervical region i.e. Oesophagus
Term
Difference between intrinsic and extrinsic glands?
Definition

Intrinsic glands have no grossly visible ducts and embedded within walls. Secretions are released into lumens directly.

 

Extrinsic glands have grossly visible ducts and are outside of walls. They release secretions into the lumen via ducts.

Term
What are the embryonic origins of the abdomen?
Definition
From the embryonic coelom due to the splitting of hte mesoderm into somatic (parietal) and splachnic (visceral) mesoderms.
Term
What are the openings of the diaphragm?
Definition

Aortic Hiatus (Aorta)

Oesophageal Hiatus (Oesophagus)

Caval foramen (Caudal Vena Cava)

Term
Inguinal Canal
Definition

Male: contains spermatic cords and arteries. Includes the genital and pudendal nn.

Female: contains the vaginal process which is the passage way for the external pudendal nn.

Term
What are the three types of Peritoneum?
Definition

1. Parietal (body wall)

2. Visceral (surface abdominal muscles)

3. Connecting (Mesentery, Omentum, Ligament)

Term
What are the three types of Connecting Peritoneum?
Definition

1. Mesentery- small intestine to body wall

2. Omentum- stomach to liver and spleen

3. Ligament- specifically connects organs

Term
What is the function of the orbicularis oris m.?
Definition
To close the lips
Term
What is the function of the Caninus m.?
Definition
In dogs for snarling. It is adjacent to the canine tooth
Term
What is the function of the levator nasolabialis m.?
Definition
To life the nose and lips
Term
What is the function of the Levator Labii Superioris?
Definition
To lift the upper lip
Term
What is the function of the depressor labii inferioris m. ?
Definition
To lower the lower lip
Term
Which nerve innervates the lip?
Definition
Facial n. (CN VII)
Term
What is the major cheek muscle that is responsible for returning food into the oral cavity proper?
Definition
Buccinator m.
Supporting users have an ad free experience!