Instructions: Choose the Letter on the Accompanying Map of the Northeast

question 52

Short Answer

Instructions: Choose the letter on the accompanying map of the Northeast that correctly identifies each of the following:

Ticonderoga

---

Definitions:

Actin Myofilament

A protein filament essential to muscle contraction, part of the thin filaments in muscle fibers that slide over myosin for muscle movement.

Intercalated Disks

Specialized connections between cardiac muscle cells that facilitate the synchronized contraction of the heart.

Striations

Parallel lines or grooves on a surface, often referring to the pattern found on skeletal muscle fibers or certain types of rocks.

Sarcomeres

The basic contractile units of muscle fiber, made of thin and thick filaments that slide past one another to produce muscle contraction.