Which of the following accurately describes a sarcomere?  

The troponin subunit that binds calcium is:

This muscle fiber type has fast ATPase and requires oxygen for ATP production.

Which muscle type is unstriated and involuntary?

The metabolic pathway that is the most efficient and results in 36 ATP per glucose molecule.

This fiber type would be utilized and maximized by sprinters.

The thick filament is composed of _______.

Select all that apply: The reader can infer that—

Over the past year, Darius has become increasingly withdrawn from friends and family. He frequently reports hearing voices that no one else can hear and believes strangers are secretly communicating messages to him through television commercials. During conversations, his speech often jumps from topic to topic in ways that are difficult for others to follow. Using your knowledge of schizophrenia, explain Darius’s symptoms. In your response, include: Hallucinations Delusions Positive symptoms Dopamine

Six months after surviving a serious house fire, Rachel continues to have nightmares about the event. She avoids driving past her old neighborhood and becomes extremely startled whenever she hears a smoke alarm. She has also become withdrawn from family and friends. Using your knowledge of PTSD, explain Rachel’s symptoms. In your response, include: Trauma Intrusive memories Avoidance Hypervigilance