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Identify and describe the unique system an echinoderm has what is it used for?
The name echinoderm means "spiny skin." Echinoderms have spines of various lengths that cover the outside of their bodies. Most echinoderms are supported and protected by an internal skeleton made up of bonelike plates. Echinoderms have a simple nervous system but don't have heads or brains.
Why can the peripheral nervous system heal but the central nervous system can't?
the schwann cells (supportive cells) in the peripheral nervous system allow the neurons to regenerate, while the supportive cells in the central nervous system (oligodendrocytes and astrocytes) prevent neuron regeneration.
What is the liquid that fills an echinoderm's vascular system?
Water
What organ system does the brain belong too?
The nervous system The central nervous system
Does the central nervous system consist of the somatic nervous system?
No. Nervous System is comprised of the Central Nervous System (CNS) and the Peripheral Nervous System (PNS) The PNS is comprised of the Somatic Nervous System and the Autonomic Nervous System The Autonomic Nervous System is comprised of the Sympathetic Nervous System, the Parasympathetic Nervous System and the Enteric Nervous System
What comprises the nervous system?
The Sympathetic Nervous System and the Parasympathetic Nervous System
What is a network of water-filled canals in an echinoderm?
water vascular system
The portion of the nervous system away from the central nervous system?
The peripheral nervous system is the portion of the nervous system away from the central nervous system. It consists of nerves that connect the central nervous system to the rest of the body, including sensory and motor neurons. The peripheral nervous system is responsible for transmitting information to and from the central nervous system.
Which of the body systems in the human body lacks lymph nodes?
The central nervous system (CNS), which comprises the brain and spinal cord, lacks lymph nodes. Instead, it has a unique system of lymphatic drainage known as the glymphatic system, which facilitates the removal of waste and supports overall brain health. This system operates differently from the peripheral lymphatic system, which includes lymph nodes and vessels.
The cranial and spinal nerves form what nervous system?
the peripheral nervous system
Huntington's disease is an autosomal dominant disorder that affects the nervous system If a man is heterozygous for the alleles that cause the condition and has children with a woman who lacks?
the man has huntingtons disease
The somatic nervous system is a component of what nervous system?
The somatic nervous system is a component of the peripheral nervous system. This system is responsible for voluntary movements and sensory information.
