A message travels from the spinal cord to hand muscles so a student can move a finger deliberately. Which division carries the voluntary motor command?

Without conscious effort, heart rate, sweating, and digestion are adjusted during a stressful test. Which division controls internal organs and glands?

A decision is processed in the brain and routed through the spinal cord before signals leave for muscles. Which division is doing the integrating work?

A nerve outside the brain and spinal cord carries touch information from the skin toward the spinal cord. Which broad division includes that nerve?

A mosquito lands on a student's arm, and touch information from the skin is carried as body sensation rather than organ control. Which peripheral division handles it?

A person's pupils, bladder, and digestion are regulated without deliberate choice. Which division handles this automatic control?

A student hears a crash in the hallway; her heart pounds and her palms sweat before she knows what happened. Which autonomic branch is acting?

After lunch, a student's heart rate slows and digestive activity increases while he relaxes. Which autonomic branch is acting?

Ten minutes after a tense presentation, a student's breathing and pulse return toward normal. Which autonomic branch is most active?

At the starting line of a race, a runner's pupils widen and glucose is released for quick energy. Which autonomic branch is acting?

While lying in bed before sleep, a student's breathing slows and the body conserves energy. Which autonomic branch is acting?

A driver swerves to avoid a crash, and her heart rate jumps as blood flow shifts toward large muscles. Which autonomic branch is acting?

In the hierarchy figure, which division belongs in the [blank] beside the peripheral nervous system?

In the hierarchy figure, which division belongs in the [blank] under the peripheral nervous system, paired with the somatic nervous system?

The figure labels each branch of the autonomic nervous system by what it does. Which division is the left branch?

The figure labels each branch of the autonomic nervous system by what it does. Which division is the right branch?

In the compare table, what belongs in the sympathetic branch's digestion cell?

In the compare table, what belongs in the parasympathetic branch's pupil cell?

During a sudden fright, the adrenal medulla releases a hormone that boosts fight-or-flight arousal. Which hormone is it?

A child's long-bone growth depends partly on a hormone released by the anterior pituitary gland. Which hormone is it?

The thyroid gland releases a hormone that helps regulate metabolic rate. Which hormone is it?

After a meal, the pancreas releases a hormone that helps cells take glucose from the blood. Which hormone is it?

Darkness signals the pineal gland to release a hormone linked to sleep-wake timing. Which hormone is it?

A text message startles a student instantly, but a stress hormone affects many organs over several minutes. Why is the hormone slower?

A neural command moves one muscle in milliseconds, while endocrine signals can affect distant targets longer. What difference explains that?