Biology Flashcard

Front

What is the axial skeleton?

Back

The axial skeleton is the part of the skeleton that protects internal organs, including the skull, vertebral column, and rib cage.

Front

What is the appendicular skeleton?

Back

The appendicular skeleton is the part of the skeleton that facilitates movement, including the limbs and girdles.

Front

What is the function of the myelin sheath in neurons?

Back

The myelin sheath speeds up the conduction of action potentials along the neuron.

Front

What are lamellae in compact bone?

Back

Lamellae are the concentric rings of bone tissue that provide strength and allow compact bone to withstand compressive forces.

Front

How does the lymphatic system help maintain homeostasis?

Back

The lymphatic system filters and returns interstitial fluid to the bloodstream, helping to maintain fluid balance.

Front

What type of joint allows the thumb to touch other fingers?

Back

The saddle joint allows for opposition, such as the thumb touching the other fingers.

Front

What is the role of dendrites in a neuron?

Back

Dendrites receive signals from other neurons and transmit them to the cell body.

Front

What is the function of the axon terminal?

Back

The axon terminal releases neurotransmitters to communicate with other neurons.

Front

What is trabeculae in bone structure?

Back

Trabeculae are the small, rod-like structures in spongy bone that provide support and strength.

Front

What is the difference between compact bone and spongy bone?

Back

Compact bone is dense and provides strength, while spongy bone is lighter and contains spaces filled with marrow.