Advanced A&P - Questions Wrong/ Uncertain on Exam

the placenta

(unit 1c) what will the trophoblast cells of the blastocysts develop into?

one diploid zygote; one haploid polar body

meiosis II of oogenesis produces: _____ and _____

paravertebral ganglia or collateral ganglia

where do the preganglionic and postganglionic neurons in the sympathetic divison synapse?

spinal cord between T1-L2 (thoracolumbar region)

where do the sympathetic preganglionic neurons originate?

craniosacral region

where do the preganglionic neurons in the parasympathetic division originate?

cholinergic and release acetylcholine

sympathetic and parasympathetic preganglionic fibers are:

majority of sympathetic postganglionic fibers

which fibers are adrenergic?

nondisjunction

what causes aneuploidy?

oxygen debt

refers to the amount of oxygen needed to make ATP to convert lactic acid to glucose, restore creatine phosphate in muscle fibers, and restore ATP in muscle fibers

synaptic transmission

1. Impulse travels along the axon of the presynaptic neuron to the axon terminal/synaptic knob

2. Voltage sensitive calcium ion channels open

3. Calcium ions diffuse into the axon terminal/synaptic knob

4. synaptic vesicles undergo exocytosis to release neurotransmitter

5. neurotransmitter diffuses across the synaptic gap/cleft

6. neurotransmitter bonds with receptor on the postsynaptic neuron

7. if threshold is reached, an action potential and impulse are generated on the postsynaptic neuron

1. Child 3- the mother was first exposed to the Rh+ blood during delivery of Child #2. After that exposure, she produced Anti-Rh antibodies, which will attack the RBCs of any future Rh+ babies)

2. RhoGAM contains Anti-Rh antibodies

3. An Rh- mom should receive RhoGAM after the birth of all Rh+ babies to ensure she doens’t produce Anti-Rh antibodies (Child 2 & 3 in this case)

A man has type O+ blood. A woman has type A- blood. They have children whose blood types are (in order of birth):

child 1: O-

child 2: A+

child 3: O+

child 4: A -

sympathetic impulses only

blood vessel diameter is controlled by

during ventricular diastole

when blood flows through the coronary arteries