_______________ produces all of your red blood cells and most of our white blood cells.
4.
Cartilage is _________________________
5.
As an embryo, our entire skeleton was of _____________, most of which was replaced with bone.
6.
The parts of the skeletal system are __________.
7.
In mature humans, cartilage is found ______________
8.
Ligaments are _______ and are harder than ____________.
9.
Ligaments help _______________.
10.
Through joints, ________________________.
11.
Joints are usually surrounded by ________________________
12.
There are _ different types of joints.
13.
The names of the different types of joints are ___________
14.
Levers allow you to _________________
15.
A lot of our joints form _______________, allowing our bodies to do more and perform efficiently.
16.
The human body has about ___ individual muscles.
17.
Muscles are made from ______________
18.
Muscle cells are ________________
19.
Unlike other cells, muscle cells can _______________, and have the __________________ per cell.
20.
There are ________ different types of muscles and their names are: ____________________
21.
Muscles work by _______________ and _______________
22.
Muscles cells can only ______________ and ________________
23.
Muscle contraction causes ___________ at a certain point
24.
Muscles can only move in one direction, so any movement of our body makes has a matching pair of muscles called, ____________________, that move in the opposite direction.
25.
___________ are how muscles connect to bones.
26.
Tendons, ligaments, and cartilage are collectively called _____________________
Quiz Review Timeline +
Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.