Question

question 8 (mandatory) (1 point) which of the 3 specific kind of muscular tissues is voluntary? skeletal muscles, cardiac muscles, smooth muscles; question 9 (mandatory) (1 point) what special structure do cardiac muscles have to distinguish it from the other kinds and types of tissues? lacunae, striations, goblet cells, intercalated discs

Explanation:

Question 8

Skeletal muscles are under voluntary control (we can consciously move them, like in limb movements). Cardiac (heart) and smooth (e.g., in organs/blood vessels) muscles are involuntary.

Question 9

Cardiac muscle has intercalated discs (special junctions for electrical/mechanical coupling). Lacunae are in bone/cartilage, goblet cells in epithelial tissue, striations are in skeletal/cardiac but not unique to distinguish cardiac from others—intercalated discs are unique to cardiac muscle.

Answer:

A. skeletal muscles