AP PSYCHOLOGY

BIOLOGICAL BASES OF BEHAVIOR

THE NERVOUS AND ENDOCRINE SYSTEMS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following is NOT a structural feature of a neuron?
A
cell body
B
nissl body
C
dendrites
D
axon
Explanation: 

Detailed explanation-1: -This is the correct answer. The synaptic cleft is the microscopic space between the synaptic end bulb on one neuron, and the dendrite of another neuron. It is not a feature of neurons themselves.

Detailed explanation-2: -A neuron has three main parts: dendrites, an axon, and a cell body or soma (see image below), which can be represented as the branches, roots and trunk of a tree, respectively. A dendrite (tree branch) is where a neuron receives input from other cells.

Detailed explanation-3: -Which is not a feature of neurons? otoliths.

Detailed explanation-4: -The functions of Nissl bodies are thought to be the same as those of the rough endoplasmic reticulum in general, primarily the synthesis and segregation of proteins. Similar to the ergastoplasm of glandular cells, Nissl bodies are the main site of protein synthesis in the neuronal cytoplasm.

There is 1 question to complete.