Science Unit Test: Human Body

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bladderWhich is the temporary storage tank for urine?More water would be transferred from the nephron.High blood pressure occurs when there is too much blood flowing through the blood vessels at one time. By changing the amount of water in the blood, blood pressure can change. The excretory system can help to lower blood pressure. Which would most likely occur in the kidney?carbon dioxideVeins take blood back to the heart. Which gas would be most abundant in a vein that takes blood from muscle cells in the arm back to the heart?red blood cellsWhich blood component makes up 41% of the blood's volume?the larynxSound can be heard when air passes over a respiratory structure that is located between the pharynx and the trachea. Which structure is responsible for the voice?carbon dioxideWhich product of respiration is considered waste material and leaves the alveoli?dendrite → cell body → axon → axon terminalsWhich is the pathway for information through a neuron?the earsWhere are the sensory receptors for sound?pituitary glandWhich gland controls water balance, growth, and blood pressure?The output is reduced so the body can maintain homeostasis.Describe the role of a negative feedback loop?skeletalWhich type of muscle tissue is both voluntary and striated?Any muscle attached to the skeleton is voluntary and may be used for movement.Skeletal muscle is controlled by the organism. Describe what this means in terms of movement?sweat glands remove wastesWhat shows a correct association between a structure and one of its functions?organIn order from less complex to more complex, which level of organization is directly after tissue?muscle cell, muscle tissue, stomach.The three components of an organ system in order of least complex to most complex?homeostasisThe state of maintaining a stable internal environment despite changing external conditions.It processes the environment and sends out signals.Explain how the nervous system is typically involved in keeping the body in homeostasis?