Joint Forces: Where Bones Bond
What is the joint classification for the shoulder or hip?
Synovial joint
What is the name of the protein that binds to calcium to initiate contraction?
Troponin
What are the basic building blocks of the nervous system?
Neurons
What are the two main structures of the central nervous system?
Brain and spinal cord
What is the largest organ in the human body?
Skin
Name the type of cartilage that forms synchondroses joints.
Hyaline cartilage
Which ion is critical for depolarizing the sarcolemma during excitation?
Sodium (Na⁺)
What is the gap called between two communicating neurons?
Synapse
What is the function of cerebrospinal fluid?
Cushion and protect the brain and spinal cord
Which muscle tissue type is involuntary and found in the heart?
Cardiac muscle
What type of joint is immovable and provides the most stability?
Synarthrosis
During which phase of a muscle twitch is calcium actively pumped back into the sarcoplasmic reticulum?
Relaxation phase
Which type of glial cell forms myelin in the central nervous system?
Oligodendrocytes
Which part of the brain controls balance and coordination?
Cerebellum
What is the term for bone cells that build new bone tissue?
Osteoblasts
Which structural component of synovial joints reduces friction during movement?
Articular cartillage
Which structure allows action potentials to penetrate deep into a muscle fiber?
T-tubules
Which division of the nervous system is responsible for involuntary actions?
Autonomic nervous system
Name the structure that connects the left and right hemispheres of the brain.
Corpus callosum
Which type of epithelial tissue is best suited for rapid diffusion?
Simple squamous epithelium
Which type of joint connects the teeth to the jawbone?
Gomphosis
What is the term for the condition where no relaxation occurs between muscle contractions, leading to maximum tension?
Fused tetanus
Name the ion primarily responsible for generating an action potential in a neuron.
Sodium (Na⁺)
What is the outermost meningeal layer that protects the central nervous system?
Dura mater
Name the pigment responsible for skin color.
Melanin