Lab Practical 2 Flashcards
True or false: The right lymphatic duct drains lymph from the right upper limb, and the right side of the head and thorax and empties the blood at the right internal jugular and subclavian veins
True
True or False: The thoracic duct drains lymph from the rest of the body and empties into the blood at the junction f the left internal jugular and subclavian vein
True
What is the larynx also known as?
the voice box
How many pieces of cartilage is the larynx made of?
9 (8 pieces are made of hyaline cartilage and one made of elastic cartilage)
The larynx superiorly attaches to what bone and opens to what structure?
The hyoid bone; laryngopharynx
The larynx inferiorly continuos with…
The trachea
The larynx houses the ______ which function to produce our _____
vocal folds; voice
From the mouth food passes through the _______ then the ________
Oropharynx; Laryngopharnx
Epithelium is ______ ______ with many mucus producing glands in the mouth
Stratified squamous
_______ is a 10” long muscular tube found mainly in the _________ __ ___ ______ ____
esophagus; Mediastinum of the thoracic cavity
it pierces the diaphragm at the __________ ____ and joind the stomach, located in the abdominal cavity, the ______ _____ which is surrounded by the ____________ _______
Esophageal hiatus; cardiac orifice; gastroesophageal sphincter
True or false: most digestive organs are inter peritoneal and are suspended from the body wall by a dorsal mesentery.
True
How many layers are in the alimentary canal?
4
True or False: Some interperiotoneal digestive organs are also suspended from the body wall by ventral mesenteries.
True
Function: Simple columnar, function secrete, absorb, protect
Epithelial membrane
What are the three layers of the mucosa in the alimentary canal
Epithelia membrane
lamina propria
Muscularis mucosae
True or False: Some digestive organs are retoperitoneal because they have lost their mesentery during development.
True
- the layer below the epithelium that supports and holds the epithelium in place
- network of Loose areola connective tissue contains blood capillaries, MALT, glands.
- also made of collagen, elastic fibers, blood vessles fibroblast, lymphopid tissue etc.
Lamina Propia
Twitching smooth muscle to dislodge food.
Muscularis mucosae
Areolar connective tissue — many blood and lymphatic vessels, nerves, lost of elastic fibers
Submucosa
Site of circular and longitudinal smooth muscle. Function peristalsis and segmentation. Circular smooth muscles forms sphincters
Muscularis externa
Outermost layer. Areolar connective tissue plus a single layer of squamous epithelial cells.
Serosa
A branching network of interconnecting nerves or vessels.
A plexus
In the submucosa controls glands and smooth muscle
The submucosal nerve plexus
Controls segmentation and peristalsis
The myenteric nerve plexus
The layer below the epithelium that supports and hold the epithelium in place
The lamina propria
a network of loose connective tissue made up of recticular fibers, collagen, and elastic fibers and contains blood vessles, fibroblast, nerve fibers, lymphoid tissue and it connected to the muscularis mucosa below.
Lamina propria
What type of tissue is the mucosa made of
Stratified squamous epithelum
What type of tissue is the submucosa made of?
Areolar connective tissue
What type of tissue is the adventia made of?
Fibrous connective tissue
Some digestive organs are what because they have lost their mesentery during development
retroperitoneal
