MASTERING BIO 253 EXAMS: A+ GRADED GUIDE WITH
LATEST QUESTIONS AND ANSWERS.
What Does The Fissures Consist of?
- part of the structure of the cerebrum
- deep grooves in surfance
- longitudinal = separates the cerebral hemispheres
- transverse = separated cerebrum from cerebellum
What Are The 5 Lobes of The Cerebral Hemispheres?
1. frontal lobe
2. parietal lobe
3. occipital lobe
4. temporal lobe
5. insula (island of Reil)
four of the lobes are named fr the bone that they underlie
Frontal Lobes
associated areas carry on higher intellectual process for concentrating, planning, complex problem
solving, and judging the consequences of behavior. motor areas control moment of voluntary skeletal
muscles
Parietal Lobes
sensory areas provide sensation of temperature, touch, pressure, and pain involving skin. association
areas function in understanding speech and in using words to express thought and feelings
Temporal Lobes
sensory area are responsible for hearing. association areas interpret sensory experiences and remember
visual scenes, music, and other complex sensory patterns
Occipital Lobes
sensory areas are responsible for vision. associated areas combine visual images with other sensor
experiences
What Is The Diencephalon?
- located between cerebral hemispheres and above the brainstem
- surrounds the third ventricle
- composed of gray matter
- thalmus
- hypothalmus
- posterior pituriary
- pineal gland
, What Is The Function Of The Thalamus?
- gate way for sensory impulses ascending to cerebral cortex
- receives all sensory impulses ( except smell)
- channels impulses to appropriate part of cerebral cortex for interpretation
What Is The Function Of The Hypothalmus?
-maintains homeostasis by regulating visceral activities such as HR, BP, temp, water and electro balance,
hunger, weight, movement, and glandular secretion in digestive tract, sleep/wakefulness, pituitary gland
function
- links nervous and endocrine systems
What Is The Function Of The Limbic System?
- consist of several structures in various parts of brain including diencephalon
- controls emotional responses, feelings, behavior oriented toward survial
- reacts to potentially life- threatening upsets (physical or psychological)
What Is The Brain Stem?
connects brain to spinal cord
consists of: Midbrain, pons, and Medulla oblongata
What Is The Function Of The Midbrain?
- short section of brain stem
- lies between diencephalon and pons
- contains bundles of fibers that join lower parts of brain stem and spinal cord with higher part of brain
- cerebral aqueduct
What Is The Function Of Pons?
- rounded bulge on underside of the brainstem
- between midbrain and medulla oblongata
- relays nerve impulses between medulla oblongata and cerebrum
-relays impulses from cerebrum to cerebellum
-helps regulate rate and rhythm of breathing
What Is The Function Of The Medulla Oblongata?
- enlarged continuation of spinal cord
- conducts ascending and descending impulses between brain and spinal cord
- contains cardiac, vasomotor, and respiratory control centers
- contains various non vital reflex control centers ( coughing, sneezing, swallowing, and vomiting)
- injuries are often fatal
What Is The Reticular Formation?
- called rectiular activating system
- complex network of nerve fibers scattered throughout brain stem
LATEST QUESTIONS AND ANSWERS.
What Does The Fissures Consist of?
- part of the structure of the cerebrum
- deep grooves in surfance
- longitudinal = separates the cerebral hemispheres
- transverse = separated cerebrum from cerebellum
What Are The 5 Lobes of The Cerebral Hemispheres?
1. frontal lobe
2. parietal lobe
3. occipital lobe
4. temporal lobe
5. insula (island of Reil)
four of the lobes are named fr the bone that they underlie
Frontal Lobes
associated areas carry on higher intellectual process for concentrating, planning, complex problem
solving, and judging the consequences of behavior. motor areas control moment of voluntary skeletal
muscles
Parietal Lobes
sensory areas provide sensation of temperature, touch, pressure, and pain involving skin. association
areas function in understanding speech and in using words to express thought and feelings
Temporal Lobes
sensory area are responsible for hearing. association areas interpret sensory experiences and remember
visual scenes, music, and other complex sensory patterns
Occipital Lobes
sensory areas are responsible for vision. associated areas combine visual images with other sensor
experiences
What Is The Diencephalon?
- located between cerebral hemispheres and above the brainstem
- surrounds the third ventricle
- composed of gray matter
- thalmus
- hypothalmus
- posterior pituriary
- pineal gland
, What Is The Function Of The Thalamus?
- gate way for sensory impulses ascending to cerebral cortex
- receives all sensory impulses ( except smell)
- channels impulses to appropriate part of cerebral cortex for interpretation
What Is The Function Of The Hypothalmus?
-maintains homeostasis by regulating visceral activities such as HR, BP, temp, water and electro balance,
hunger, weight, movement, and glandular secretion in digestive tract, sleep/wakefulness, pituitary gland
function
- links nervous and endocrine systems
What Is The Function Of The Limbic System?
- consist of several structures in various parts of brain including diencephalon
- controls emotional responses, feelings, behavior oriented toward survial
- reacts to potentially life- threatening upsets (physical or psychological)
What Is The Brain Stem?
connects brain to spinal cord
consists of: Midbrain, pons, and Medulla oblongata
What Is The Function Of The Midbrain?
- short section of brain stem
- lies between diencephalon and pons
- contains bundles of fibers that join lower parts of brain stem and spinal cord with higher part of brain
- cerebral aqueduct
What Is The Function Of Pons?
- rounded bulge on underside of the brainstem
- between midbrain and medulla oblongata
- relays nerve impulses between medulla oblongata and cerebrum
-relays impulses from cerebrum to cerebellum
-helps regulate rate and rhythm of breathing
What Is The Function Of The Medulla Oblongata?
- enlarged continuation of spinal cord
- conducts ascending and descending impulses between brain and spinal cord
- contains cardiac, vasomotor, and respiratory control centers
- contains various non vital reflex control centers ( coughing, sneezing, swallowing, and vomiting)
- injuries are often fatal
What Is The Reticular Formation?
- called rectiular activating system
- complex network of nerve fibers scattered throughout brain stem
