Keyword Analysis & Research: what is the membrane around the heart called

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
what is the membrane around the heart called	1.69	0.5	2541	41	44
what	0.12	1	2640	40	4
is	1.24	0.8	9197	97	2
the	1.87	0.1	9967	87	3
membrane	0.92	0.9	2134	87	8
around	1.79	0.2	2760	77	6
the	1.26	0.7	2119	53	3
heart	1.48	0.6	2007	82	5
called	0.78	0.3	3365	100	6

Keyword	CPC	PCC	Volume	Score
what is the membrane around the heart called	1.61	0.8	3520	40
membrane around heart called	0.62	0.8	9780	58
the membrane covering the heart is the	0.24	0.2	5310	92
the membrane surrounding the heart	0.2	0.7	5039	93
membrane of the heart	1.57	0.6	8677	73
what type of membrane covers the heart	0.38	0.8	9095	78
what membrane covers the heart	1.98	0.5	5090	13
what membrane covers or surrounds the heart	0.13	0.6	306	2
what is the membrane over the heart	1.05	0.3	8534	78
what membrane is the heart surrounded by	0.53	0.6	2297	35