Question

which term describes a bundle of axons in the peripheral nervous system? ganglion nucleus tract nerve question 20 2 pts true ribs are ______. ribs 8 - 12 attached via their costal cartilage to the next higher rib made entirely of bone, and thus do not have a costal cartilage attached via their costal cartilage directly to the sternum

Explanation:

• For the first question:
• A ganglion is a cluster of neuron cell bodies in the PNS.
• A nucleus is a cluster of neuron cell bodies in the CNS.
• A tract is a bundle of axons in the CNS.
• A nerve is a bundle of axons in the PNS.
• For the second question:
• Ribs 8 - 12 are false ribs (8 - 10) and floating ribs (11 - 12).
• Ribs attached via their costal cartilage to the next higher rib are false ribs (8 - 10).
• No ribs are made entirely of bone without costal cartilage.
• True ribs (1 - 7) are attached via their costal cartilage directly to the sternum.

Answer:

• First question: Nerve
• Second question: attached via their costal cartilage directly to the sternum