Thursday, February 14, 2008
Thurs-Day 1
Bio- HW due Friday: Outline text section 36.1
We discussed nerve impulse transmission; a sensory neuron will detect a stimulus, which causes an electrical impulse to travel from its dendrites to its long, thin, myelin sheath-coated part and then to its axon where the impulse causes the secretion of neurotransmitters; these neurotransmitter chemicals are then absorbed by the next adjacent neuron and the impulse continues.
Overall, a REFLEX ARC consists of electrochemical impulses that travel from the receptors of the SENSORY NEURONS to the INTERNEURONS to the MOTOR NEURONS which finally cause the EFFECTORS to react. An effector is a MUSCLE, which will contract, or a GLAND, which will then secrete a hormone.
We then began our discussion of the first of two main sections of the nervous system: the CENTRAL nervous system, which consists of the BRAIN and the SPINAL CORD. The spinal cord is surrounded by and protected by the vertebrae. We will continue this discussion tomorrow.
We then finished our discussion of the Epidemic lab. We also discussed the difference between scientific evidence and anecdotal evidence.
Chem 7- we continued with the "magic triangle" calculations of moles to grams and grams to moles. We then derived and did examples of the other two triangle vertices: liters of gas at STP to moles and vice-versa and then moles to # of particles and vice-versa.
We also did a couple of calculation from grams to moles to molecules; these two-step problems always involve calculating moles from either grams, liters, or # of particles and then calculating from moles to one of the three vertices: grams, liters, or # of particles.
Chem 8/9- we continued with the "magic triangle" calculations of moles to grams and grams to moles. We then derived and did examples of the other two triangle vertices: liters of gas at STP to moles and vice-versa and then moles to # of particles and vice-versa.
We also did a couple of calculation from grams to moles to molecules; these two-step problems always involve calculating moles from either grams, liters, or # of particles and then calculating from moles to one of the three vertices: grams, liters, or # of particles.
We then did a worksheet with which we practices the magic triangle calculations on common substances.
We discussed nerve impulse transmission; a sensory neuron will detect a stimulus, which causes an electrical impulse to travel from its dendrites to its long, thin, myelin sheath-coated part and then to its axon where the impulse causes the secretion of neurotransmitters; these neurotransmitter chemicals are then absorbed by the next adjacent neuron and the impulse continues.
Overall, a REFLEX ARC consists of electrochemical impulses that travel from the receptors of the SENSORY NEURONS to the INTERNEURONS to the MOTOR NEURONS which finally cause the EFFECTORS to react. An effector is a MUSCLE, which will contract, or a GLAND, which will then secrete a hormone.
We then began our discussion of the first of two main sections of the nervous system: the CENTRAL nervous system, which consists of the BRAIN and the SPINAL CORD. The spinal cord is surrounded by and protected by the vertebrae. We will continue this discussion tomorrow.
We then finished our discussion of the Epidemic lab. We also discussed the difference between scientific evidence and anecdotal evidence.
Chem 7- we continued with the "magic triangle" calculations of moles to grams and grams to moles. We then derived and did examples of the other two triangle vertices: liters of gas at STP to moles and vice-versa and then moles to # of particles and vice-versa.
We also did a couple of calculation from grams to moles to molecules; these two-step problems always involve calculating moles from either grams, liters, or # of particles and then calculating from moles to one of the three vertices: grams, liters, or # of particles.
Chem 8/9- we continued with the "magic triangle" calculations of moles to grams and grams to moles. We then derived and did examples of the other two triangle vertices: liters of gas at STP to moles and vice-versa and then moles to # of particles and vice-versa.
We also did a couple of calculation from grams to moles to molecules; these two-step problems always involve calculating moles from either grams, liters, or # of particles and then calculating from moles to one of the three vertices: grams, liters, or # of particles.
We then did a worksheet with which we practices the magic triangle calculations on common substances.
# posted by C @ 3:04 PM 
