Chapter 14 Worksheet

Which of the following is a true statement about the brain barrier system? Check all that apply.

- Both brain barriers utilize tight junctions to keep harmful substance from getting to the tissue fluid of the brain. - Alcohol, caffeine, nicotine, and anesthetics can all cross the brain barrier system. - The brain barrier system is susceptible to trauma and damage. - The blood-CSF barrier blocks CSF from leaking into the bloodstream.

Place the following structures in order from superficial to deep.

- Integumentary system - Superficial cortical (compact) bone - Trabecular (spongy) bone - Deep cortical (compact) bone - Periosteal layer of dura mater - Meningeal layer of dura mater - Arachnoid mater - CSF in the subarachnoid space - Pia mater - Neocortex

Which of the following statements is true regarding cerebral lateralization? Check all that apply.

- Left-handed people usually exhibit a wider frontal, parietal, and occipital lobe on the left compared to the same lobes on the right. - Imagination, insight, and artistic skill are usually specialties of the right hemisphere. - Lateralization develops with age and is not already developed at birth.

Which structures are located in the diencephalon? Check all that apply.

- Thalamus - Epithalamus - Hypothalamus

Click and drag the terms on the left to accurately complete the sentences on the right.

- There are FOUR different types of brain waves. The absence of brain waves is a medical criterion to determine BRAIN DEATH. - ALPHA waves dominate when a person is awake with eyes closed and mind wandering. - BETA waves, found in the frontal and parietal regions, are accentuated during mental activity. - THETA waves can be dominant in awake adults with emotional stress. - DELTA waves are normally found in awake infants.

Place a single word into each sentence to make it correct, then place each sentence into a logical paragraph order describing the flow of cerebrospinal fluid.

1. CSF is secreted into each LATERAL ventricle by choroid plexus and flows into the third ventricle where more is added. 2. CSF then flows down the cerebral AQUEDUCT to the fourth ventricle. 3. CHOROID plexus in the fourth ventricle adds more CSF. 4. CSF then flows out two lateral apertures and one MEDIAN aperture. 5. CSF fills the SUBARACHNOID space and bathes external surfaces of brain and spinal cord. 6. At arachnoid villi, CSF is reabsorbed into venous blood of DURAL venous sinuses.

Put the components of the brainstem in order from the most rostral to the most caudal.

1. Diencephalon 2. Midbrain 3. Pons 4. Medulla oblongata

Click and drag the terms on the left to accurately complete the sentences on the right. Then, arrange the sentences in order of when they would occur according to the stages of sleep.

1. The person begins to feel drowsy and may experience a DRIFTING sensation. 2. High spikes in the EEG called SLEEP SPINDLES occur. These are related to neuron interactions between the thalamus and cerebral cortex. 3. Theta and delta waves appear, and the body's VITAL SIGNS begin to fall. 4. Entering SLOW WAVE sleep, the muscles are very relaxed, and the vital signs are at their lowest. 5. REM occurs, which is when the EYES oscillate back and forth while the sleeper is hard to awaken.

Click and drag the appropriate label on the left to its correct position on the right.

1st brain top: - association tracts 1st brain bottom left to right: - corpus callosum - projection tracts 2nd brain left top to bottom: - longitudinal fissure - commissural tracts - thalamus - projection tracts 2nd brain right top to bottom: - lateral ventricle - basal nuclei

Which of the following is the prominent C-shaped fiber tract that connects the right and left cerebral hemispheres?

Corpus callosum

A lesion in the right side of the brainstem will usually cause a sensory or motor deficit on left side of the head.

False

The cerebral aqueduct passes CSF down the core of the midbrain and into which of the following?

Fourth ventricle

Drag each label to the appropriate position to indicate whether the given function is controlled by the right or left cerebral hemisphere.

Left: - motor control of the right hand - mathematical reasoning - speech and language comprehension - verbal memory Right: - sensation of left hand - artistry and creativity - memory of shapes - ipsilateral sensation of the right side of the body - contralateral sensation of the left side of the body

Read each description below and determine to which stage of sleep each pertains. Then, click and drag each box into the appropriate category below.

Stage 1: - alpha waves dominate - feeling a drifting sensation Stage 2: - light sleep - sleep spindles occur Stage 3: - beginning of decline in respiration and blood pressure - typically begins about 20 minutes after stage 1 Stage 4: - vital signs are at their lowest levels - delta waves dominate

Spatial perception and the recognition of familiar objects require activity in which of the following cortical regions?

Visual association areas

Which of the following is not a type of brain wave?

omega waves

Match the name of each cranial nerve to its designated number.

optic- II oculomotor- III trochlear- IV abducens- VI glossopharyngeal- IX hypoglossal- XII

Indicate whether each term represents a structure vs. a cavity, space, or division.

structure: - cerebrum - cerebellum - gyrus - insula cavity, space, or division: - fissure - lateral ventricle - cerebral aqueduct - dural sinus - interventricular foramen - median aperture

Choose the structures that are composed of gray matter. Check all that apply.

thalamus, motor cortex, and basal nuclei