Optical microscope.
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Answer:
A dorsal root (sensory or afferent) and a ventral root (motor or efferent) originate from the medulla. They unite near the intervertebral foramen, forming the spinal nerve. The nerves emerge from the intervertebral foramen, dividing into ventral and dorsal ramus.
Explanation:
The nerve is a set of nerve fibers perceptible to the naked eye and wrapped in connective tissue. They are made up of roots, trunks and nerve branches (some of them come together and form plexuses).The spinal nerve originate from the spinal cord in the form of 31 pairs: 8 cervical, 12 thoracic, 5 lumbar, 5 sacral and 1 coccygeal. They emerge from the spinal cord through two roots: dorsal roots, made up of sensory fibers that come from the sensory neurons of the spinal ganglion and that penetrate the spinal cord through the posterolateral and ventral root, made up of motor fibers, coming from the motor neurons of the anterior horn and visceral of the lateral horn of the gray matter of the spinal cord. This root exits the spinal cord through the anterolateral groove, then joins the posterior root to form the spinal nerve, which exits the vertebral canal through the corresponding intervertebral foramen.Each spinal nerve, after leaving the vertebral canal, emits two primary ramus: the dorsal ramus, contains somatic and visceral fibers that go to the skin and muscles of the back and the ventral ramus, which supplies the ventrolateral surface of the skin, body wall and extremities.
Answer:
<h3>B. The study of all living things.</h3>
Explanation:
Biology is the SCIENTIFIC study of life. It is a natural Science with a broad scope such as anatomy, physiology , morphology e.t.c.
Answer:
ATP stands for adenosine triphosphate. It is a molecule found in the cells of living organisms. It is said to be very important because it transports the energy necessary for all cellular metabolic activities. Without ATP, various metabolic activities in the human body cannot take place.
Explanation:
Protective membranous coverings that lie between bony coverings and the soft tissues of the cns are called the <u>meninges</u>
<h3>What are the brain meninges?</h3>
The brain meninges are the three protective membranous thin layers of tissue that cover and protect the brain and spinal cord of the nervous system. These meninges are:
- The dura mater
- Arachnoid mater
- Pia mater
So therefore, the protective membranous coverings that lie between bony coverings and the soft tissues of the cns are called the meninges
Learn more about the nervous system:
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