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Unit 2D
Brain
| Question | Answer |
|---|---|
| The largest part of the brain consisting of 2 hemispheres | Cerebrum |
| The Cerebrum is made up of ______ (external) which are convolutions of the cerebrum that are separated by _____(internal) | Gyri, Sulci |
| The Cerebrum contains various ______ and large _____ | Fissures, Sulci |
| The Four Major Fissures or Sulci of the cerebrum are ? | 1. Longitudinal Fissure 2. Transverse Fissure or sulcus 3. Lateral sulcus or Fissure 4. Central Sulcus |
| Separates the right and left hemispheres and is occupied by the FALX CERIBI | Longitudinal Fissure |
| Separates the cerebrum and the cerebellum and is occupied by the TENTORIUM CEREBELLI | Transverse Fissure or sulcus |
| Separates the temporal Lobe from the rest of the cerebrum | Lateral sulcus or Fissure |
| Separates the pre-central (motor) and the post-central (sensory) gyri | Central Sulcus |
| Central Sulcus : The primary MOTOR cortex is _________ gyrus, it lies _______ to the central sulcus | pre-cetral , anterior |
| Central Sulcus : The primary SENSORY cortex is _________ gyrus , it lies ______ to the central sulcus | Post-central , Posterior |
| The Cerebrum consists of 5 lobes per hemisphere what are they ? | Frontal, Parietal , Occipital , Temporal, Insula |
| The _____ lies within the depths of the Lateral Sulcus (therefore if u cut open between the the temporal and the frontal you'll find it ) | Insula |
| Basal Ganglia(nuclei) contain the central _____ matter of the cerebrum | gray |
| The Basal Ganglia(nuclei) function in control of ______ and ______ | Movement, Posture |
| Diseases in the Basal Ganglia(nuclei) involve disturbances in voluntary ____ control . Ex. Parkinsons , Huntingtons chorea | Muscular |
| The MOST important sensory relay center of the brain is the ? | Thalamus |
| The thalamus sends incoming impulses from the receptors of the body to the ? | Cerebral Cortex |
| Hypothalamus literally means | Below the Thalamus |
| The Hypothalamus lies between and is associated with the : (3) | 1. Optic chiasma 2. Mammillary bodies 3. Pituitary glands |
| Part of the Hypothalamus where the optic tracts (CNII) cross | Optic chiasma |
| Part of the Hypothalamus that is the sensory synaptic station | Mammillary bodies |
| Part of the Hypothalamus that projects inferior from it and secretes many hormones | Pituitary glands |
| The Hypothalamus functions in the regulation of visceral activity (deep internal feelings) such as (3 categories) | 1. Body temperature 2. Carbohydrate and lipid metabolism 3. Sleep, Sexual activity , and Emotions |
| Cerebellum literally means | Little Brain |
| The Cerebellum connects with 3 things ? (MPM) | midbrain, pons , and medulla oblongata |
| The Cerebellum consists of 2 hemispheres that are separated by a ? | median vermis |
| The Cerebellums outer cortex contains Folia( Leaves) that are separated by _____ | Fissures |
| Internally the Cerebellum presents ____ matter branching in the form of a Tree called the _____ _____ | white, Arbor Vitae |
| 3 Functions of the Cerebellum | 1. Coordinate Muscular Activity 2. Regulate muscle tone 3. Maintain Equilibrium |
| The three parts of the Brainstem | 1. Midbrain 2. Pons 3. Medulla Oblangata |
| Brainstem: The Midbrain lies between the ____ & ____ | Thalamus, Pons |
| which part of the Brainstem contains the Corpora Quadrigemina | The Midbrain |
| Brainstem(Midbrain): Corpora Quadrigemina consists of 4 elevations (bumps) 2 top ones are called ______ ______ and the 2 bottom ones are called _____ _____ | Superior colliculi , Inferior colliculi |
| Part of Corpora Quadrigemina that is involved in the pathway of vision? | The Superior colliculi |
| Part of Corpora Quadrigemina that i is involved in the pathway of hearing ? | The Inferior colliculi |
| The Pons act as a _____ connecting the right and left hemispheres of the cerebellum. | bridge |
| Which part of the brainstem relays impulses from the cerebral cortex to the cerebellum ? | The pons |
| The part of the Brainstem that is directly continuous with the spinal cord and will contain most of the ascending and descending tracts of the spinal cord | THE MEDULLA OBLONGATA |
| The Medulla Oblongata represents an area where pyramidal tract fibers lie, called the _______ ? | Pyramids |
| The Pyramids contain several nuclei involved in the regulation of vital body activities: such as ? (3) | 1. Respritory 2. Cardiac ( heart rate) 3. Vasomotor (blood pressure) |
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