Bad to the Bone
This is the total number of bones in the adult human body
What is 206
This type of muscle is under voluntary control.
What is skeletal muscle
These two structures make up the central nervous system.
What are the brain and spinal cord.
These blood vessels carry blood back to the heart.
What are veins
This term means "toward the front of the body"
What is anterior
This connective tissue connects bone to bone.
What is a ligament
This theory explains how muscles contract using actin and myosin.
What is the sliding filament theory
This system is also known as the "fight or flight" response.
What is the sympathetic nervous system
This large artery pumps blood from the heart to the rest of the body.
What is the aorta
What is the sagittal plane
This is the longest bone in the human body.
What is the femur
This unit is the functional unit of a muscle fiber
What is a sarcomere
This structure carries signals from receptors to the spinal cord in a reflex.
What is a sensory neuron
Failure of these structures leads to blood pooling and conditions like varicouse veins.
What are venous valves
This prefix means liver.
What is hepat-
This type of bone includes the vertebrae.
What is irregular bones
If ATP is unavailable, muscles would become stuck in this state.
What is rigor mortis
This molecule enters a neuron during an action potential.
What is sodium (Na+)
This part of the heart initiates the electrical signal that causes contraction.
What is the SA node
This cavity contains digestive organs like the stomach and intestines.
What is the abdominal cavity
This structure covers the ends of bones in joins and reduces friction.
What is articular cartilage
This type of contraction occurs when a muscle tightens but does not change length.
What is an isometric contraction
If communication between the left and right hemispheres is disrupted, this structure is likely damaged.
What is the corpus callosum
This ECG component directly triggers ventricular systole.
What is the QRS complex
Using prefixes and suffixes, this term literally means "water in the head"
What is hydrocephalus