Table of Contents
What does the medulla oblongata control in the dogfish shark?
Cerebellum – Just caudal from the optic lobes it controls muscular coordination and position. Auricle of Cerebellum (Restiform body) – A lateral extension of the cerebellum. Medulla Oblongata – The base of the brain, a widening of the spinal cord. Controls many of the spinal reflexes.
What are the three parts of the dogfish brain?
Identify the five parts of the brain and their associated structures. In the Telencephalon, the two large symmetrical structures overlying, and just anterior to, the cerebellum, are the cerebral hemispheres….The Dogfish Brain.
| Brain Part | Structures | Nerves |
|---|---|---|
| Telencephalon | olfactory lobes cerebral hemispheres | olfactory I |
What does the nervous system do for the shark?
Sharks have evolved highly developed nervous and sensory systems that they use to find prey. Each species has adapted these senses to their own environment.
What are the 4 major parts of the shark’s brain?
A partial list of functions: the cerebellum is in charge of body movement; the hindbrain processes most sensory information and moves the head; the tectum integrates sensory information; the olfactory lobes are for the sense of smell; the diencephalon regulates hormones and some behaviors; the forebrain coordinates …
Is Dogfish a fish?
dogfish, (order Squaliformes), any of several small sharks making up an order of chondrichthyian fishes composed of the families Centrophoridae (gulper sharks), Dalatiidae, Echinorhinidae, Etmopteridae, Oxynotidae, Somniosidae, and Squalidae. In North America the name is also used for a freshwater fish, the bowfin.
What is the largest single part of the dogfish shark nervous system?
The largest single part of the shark’s nervous system is the brain.
Can sharks smile?
But do they really smile? Not likely. In sharks and other fish, the parts of the brain related to feelings aren’t developed enough to produce a smile. Some animals do apparently show feelings such as happiness, anger and fear.
Where is the medulla oblongata located in a dog?
The medulla oblongata is the first part of the brain that develops in puppies before they are born. In the middle of a dog’s brain is the corpus callosum. This is a wall of nerve cells which facilitates communication between the left and right side of the telencephalon and diencephalon.
What are the functions of the medulla oblongata?
Tests The medulla oblongata carries signals from the brain to the rest of the body for essential life functions like breathing, circulation, swallowing, and digestion. Making up a tail-like structure at the base of the brain, the medulla oblongata connects the brain to the spinal cord, and includes a number of specialized structures and functions.
Where does the spinal cord connect to a dog’s brain?
At the base of a dog’s brain, where it connects to the spinal cord, is a structure known as the medulla oblongata.
Where is cerebrospinal fluid located in a dogfish?
Thebrain in encased in membranes called meninges. In dogfishthere is only a single meninx, which holds cerebrospinal fluidbetween itand the brain. The cerebrospinal fluid also circulates within the cavities ofthe brain and spinal cord.