A man is walking in the park at night when he sees a shadow suddenly dart across his path. Which glands will be responsible for controlling his “fight or flight” reaction? Check all that apply.

The hypothalamus starts the fight-or-flight response by activating the sympathetic nervous system. The adrenal glands, especially the adrenal medulla, release hormones such as adrenaline that help prepare the body to react. The thymus and pancreas have other roles and are not responsible for controlling this response.

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