In: Anatomy and Physiology
1) Ally is on top of a mountain slope as she is about to ski for her first time and she is scared, she bends over and starts to go down the slope. She immediately feels her heart beating fast, potentially going sympathetic dominant, which hormone was released and where was it released into?
A) Epinephrine that was released to an effector organ
B) Aldosterone that was released into the kidneys
C) Adrenaline that was released into the bloodstream
D) Two of these are correct
E) No hormones were released
2. Ally wants to stop but doesn't know how so she contracts her muscles and sticks her ski poles in the snow. What allowed her to be able to contract her biceps to be able to do this?
A) Actin and myosin separate in opposite directions from each other for the muscles to be able to contract
B) The motor units of the somatic nervous system that are made up of neuron axon terminals work together to be able to contract and move the muscles
C) The lateral period is the reason why muscles are allowed to contract
D) None of these are correct
E) All of these are correct
3. After Ally stuck her poles in the snow she fell over and hurt herself, soon after another skier found her and she was rushed to the hospital. The doctor took her vitals and an x-ray on the chest, the result showed a thrombus formation. What does this mean and where are they located?
A) There was a blood clot formed in her veins or arteries that could be a big problem since it blocks blood from flowing through
B) It is a type of heart failure that is life threatening that is specifically located in the ventricles
C) It is a disease in the arteries that contains extra fatty materials in the inner wall
D) Two of these are correct
E) None of these are correct
1.C) Adrenaline that was released into the bloodstream
When a person is scared or if they are in psychological stress, the body activates sympathetic nervous stimulation, which results in release of hormones like adrenaline (epinephrine) nor adrenaline into the bloodstream, this causes cause several changes in the body, including an increase in heart rate and blood pressure.increase in energy, etc
2.B) The motor units of the somatic nervous system that are made up of neuron axon terminals work together to be able to contract and move the muscles
Somatic nervous system is a part of peripheral nervous system, responsible for regulating voluntary movements of the body, in addition to this it is responsible for the reflexes controled by neural pathway known as reflex arc. A motor unit is made up of a motor neuron and the skeletal muscle fibers innervated by that motor neuron's axonal terminals.
3 A) There was a blood clot formed in her veins or arteries that could be a big problem since it blocks blood from flowing through
Thrombus formation, is the formation of a blood clot inside a blood vessel, obstructing the flow of blood through the circulatory system. The clot is formed so that there is no excess loss of blood.and this is trigered by the platlets and fibrin.