Which statement is true? The fissures are muscles that surround the lungs and facilitate breathing.
The bronchioles move oxygen into the bloodstream.
The pleural cavity keeps the lungs attached to the ribcage.
The lobules maximize the number of places where oxygen exchange can occur.

Ais a fluid-filled space between two neurons through which neurotransmitters travel. it is in this area where messages are transmitted chemically. a. terminal button b. synapse c. neuronal membrane d. synaptic vesicleits b, i just guessed it and it turned out to be right.

Group of genes that encode molecules found in all body cells, creating a biochemical “fingerprint” that serves as the “id” for cells so that they are marked as “self” a) deoxyribonucleic acid (dna) b) entry inhibitors c) major histocompatibility complex (mhc) d) non-nucleoside reverse transcription inhibitors (nnrtis)

Rotation of the head is made in atlanto-occipital joint or not?