Chapter 8 muscles
The _________ articulates anteriorly with the talus
Navicular
Which tarsal bones articulate with the second cuneiform?
Navicular, first cuneiform
The transverse arch is formed by these structures
Navicular, metatarsal, cuneiform
The tarsal bone that articulates with the tibia and the fibula is the
Talus
The transmits the entire weight of the body to the calcaneus and other tarsal bones.
Talus or astragalus
Most of a person's body weight is absorbed by the talus and the calcaneus.
true
The "ball of the foot" normally carries about 40% of the weight of the body. What is the ball of the foot?
distal metatarsal
In a person with 5 toes on a foot, there would be 15 phalanges on that foot.
false
What structural feature of the arches allows them to absorb shocks?
flexible tendons and ligaments
Which bone is in direct contact with the first metatarsal?
medial cuneiform
A "fallen" arch is generally due to a weakened or damaged
medial longitudinal arch
Distally, the metatarsals articulate with the proximal row of phalanges to form the___________________________ joints.
metatarsophalangeal
Which tarsal is more medial?
second cuneiform
Arches of the foot are fully developed by what age?
12-13
The largest (and strongest) of the tarsals is the
Calcaneous
The calcaneus absorbs 90% of the body's weight every time a person walks.
False
The distal portion of the metatarsal is the base and the proximal portion is the head.
False
The fifth metatarsal is thicker than the others because it bears more weight
False
The metatarsals are numbered I-V, starting from the lateral side of the foot and moving medially.
False
The great toe is also called the pollex.
False (Hallux)
Following a playground accident, little Johnny was told he broke his hallux. What bone did he break?
Great toe
Both the medial and lateral parts of the longitudinal arch originate at the calcaneus.
True
Each phalanx contains a distal end called the head and a proximal portion called the base
True
The heel bone is called the
calcuenous
Tarsal bones include
cuneiform , calcaneous