Question

homeostatic imbalance 7.4
if the cerebellum is damaged (for example, by a blow to the head, a tumor, or a stroke), movements become clumsy and disorganized—a condition called ataxia (uh - taxe - uh). victims cannot keep their ( 1 ) and may appear drunk because of the loss of muscle coordination. they are no longer able to touch their finger to their nose with eyes closed—a feat that healthy individuals accomplish easily.
protection of the central nervous system
nervous tissue is soft and delicate, and even slight pressure can injure the irreplaceable neurons. as we saw in chapter 5, nature tries to protect the ( 2 ) and spinal cord by enclosing them within bone (the skull and vertebral column). now, lets focus on three additional protections for the cns: the meninges, cerebrospinal fluid, and blood - brain barrier. meninges: the three connective tissue ( 3 ) covering and protecting the cns structures are meninges (mē - ninjēz) (figure 7.17, p. 248). the outermost layer, the leathery dura mater (durah mater), meaning tough or hard mother, is a double - layered membrane where it surrounds the brain. one of its layers is attached to the inner surface of the skull, forming the periosteum (periosteal layer). the other, called the ( 4 ) layer, forms the outermost covering of the brain and continues as the dura mater of the spinal cord. the dural layers are fused together except in three areas where they separate to enclose dural venous sinuses that collect venous ( 5 ) such as the superior sagittal sinus.

1 meningeal 2 blood 3 balance 4 brain 5 membranes

1 blood 2 balance 3 brain 4 membranes 5 meningeal

1 membranes 2 meningeal 3 blood 4 balance 5 brain

1 brain 2 membranes 3 meningeal 4 blood 5 balance

1 balance 2 brain 3 membranes 4 meningeal 5 blood

Explanation:

1. When the cerebellum is damaged, loss of muscle - coordination affects balance.
2. Nature protects the brain and spinal cord with bone.
3. The three connective - tissue membranes covering the CNS are meninges.
4. The dural layer that forms the outermost covering of the brain and continues as the dura mater of the spinal cord is the meningeal layer.
5. Dural venous sinuses collect venous blood.

Answer:

1. balance
2. brain
3. membranes
4. meningeal
5. blood