Anatomy of the Dogfish

Questions and Answers

What is the primary function of the liver in the dogfish?

Secreting bile, storing glycogen and fat, and destroying worn out erythrocytes (correct)

Secreting digestive enzymes

Regulating blood sugar levels

Storing bile and aiding in digestion

Where does the pancreatic duct in the dogfish open?

Into the dorsal fin

Into the stomach

Into the intestine (correct)

Into the liver

What is the structure and location of the rectal gland in the dogfish?

Small finger-like body with a duct to the dorsal side of the rectum (correct)

Round structure connected to the spleen

Large duct attached to the liver

Flat organ connected to the stomach

Which statement about the spleen in the dogfish is correct?

It is a large gland with no physiological relation to the alimentary canal. Signup and view all the answers

Which function is NOT performed by the liver of the dogfish?

Filtering blood Signup and view all the answers

Which of the following glands in the dogfish has a duct that opens into the intestine?

Pancreas Signup and view all the answers

What is a major function of the liver in the dogfish?

Stores glycogen Signup and view all the answers

Which statement accurately describes the rectal gland in the dogfish?

It has a duct connecting it to the rectum. Signup and view all the answers

Which of the following is true regarding the spleen in the dogfish?

It has no relation to the alimentary canal. Signup and view all the answers

What is the primary characteristic of the liver in the dogfish?

It is a bi-lobed gland. Signup and view all the answers

Study Notes

Anatomy of the Dogfish

Liver:
- Massive yellowish bi-lobed gland essential for metabolism.
- Functions include bile secretion, glycogen and fat storage, and destruction of aged erythrocytes (red blood cells).
Pancreas:
- Contains a small pancreatic duct running the length of the gland.
- Duct opens into the intestine, facilitating the delivery of digestive enzymes.
Rectal Gland:
- Small, finger-like structure located on the dorsal side of the rectum.
- Has a specific duct that connects it to the rectum, playing a role in osmoregulation.
Spleen:
- Large gland associated with immune functions, not directly related to the alimentary canal.
- Plays a role in blood filtration and the recycling of iron from hemoglobin.

Anatomy of the Dogfish

Liver:
- Massive yellowish bi-lobed gland essential for metabolism.
- Functions include bile secretion, glycogen and fat storage, and destruction of aged erythrocytes (red blood cells).
Pancreas:
- Contains a small pancreatic duct running the length of the gland.
- Duct opens into the intestine, facilitating the delivery of digestive enzymes.
Rectal Gland:
- Small, finger-like structure located on the dorsal side of the rectum.
- Has a specific duct that connects it to the rectum, playing a role in osmoregulation.
Spleen:
- Large gland associated with immune functions, not directly related to the alimentary canal.
- Plays a role in blood filtration and the recycling of iron from hemoglobin.

Description

Explore the intricate anatomy of the dogfish, focusing on key organs such as the liver, pancreas, rectal gland, and spleen. This quiz delves into the functions and structures of these vital components that contribute to the dogfish's metabolism and immune system. Test your knowledge and understanding of these unique anatomical features.